Humpback Whales: The Ultimate Guide to Humpback Whales!

The Ultimate Guide to Humpback Whales and all the FAQs you need to know!

What do Humpback Whales Feed on and how do they Feed?

Humpback whales eat krill and small invertebrates called zooplankton. They feed via lunge feeding, thrusting forward and opening their mouths wide. Their throat grooves open and close like an accordion. This lets them gulp water that has tiny prey inside. They then push the water back through their baleen plates, which trap the krill and zooplankton. Once the water is expelled, they swallow their captured food.

Humpbacks also eat schooling fish like pollock, herring, mackerel, sardines, and anchovies. These fish are caught if they are too large to be expelled through the baleen plates. Some humpback populations use a technique called bubble netting, performed in teams. One whale calls loudly from below, scaring fish upward while releasing bubbles in a circle or spiral to trap the prey. Other whales use their white underbellies to direct the fish upwards. The whales then erupt from the bubble net, mouths open, to capture their food.

When do Humpback Whales Feed and how often?

In the Southern Hemisphere, humpback whales mainly feed in the summer. They do this in the Southern Ocean near Antarctica. Sometimes, they also eat baitfish while migrating. The food source is concentrated in Antarctica due to nutrient release from melting ice caps, resulting in plankton blooms.

As they migrate to higher latitudes, the food source becomes less reliable. Therefore, while in the Southern Ocean, they focus on gaining weight to utilize stored energy during migration. Humpbacks need to consume at least one tonne of prey per day on their feeding grounds to sustain their metabolism. They can hold almost 19,000 liters of water in a single gulp. When bubble netting, they can feed for 12 hours or more, gaining up to five kilograms per hour when feeding twice a day.

Bussel2.jpg 1

How do Humpback Whales impact the Cycling and Movement of Nutrients in the Ocean?

Humpback whales’ prey, zooplankton and krill, feed on phytoplankton, which convert sunlight into food and sequester carbon. Humpback whales contribute to marine nutrient cycling through their consumption and defecation of nutrient-rich krill and zooplankton. Predators like killer whales prey on humpbacks, and deceased whales are consumed by sharks and other marine scavengers.

The carcasses of dead whales, known as “whale fall,” provide food and nutrients, supporting rich marine communities for years. This process creates new food webs that recycle energy back into the ocean ecosystem.

Do Humpback Whales hold Cultural Significance in Regions around the World?

Humpback whales are important in many indigenous cultures. In places like Polynesia and Australia, they appear in myths, totems, and traditional hunting. Some indigenous communities in Denmark, Greenland, Russia, and the United States can still hunt whales. This is allowed by the International Whaling Commission (IWC).

Why were Whales Harvested during the Whaling Period?

Humpback whales were heavily targeted by commercial whaling for their oil, baleen, and blubber. Whale blubber was used for lamp fuel, lubricants, candles, and as a base for perfumes and soaps. Baleen was used for corsets, whips, and umbrellas, and their meat was sold for consumption. Commercial whaling began in the seventeenth century in all major oceans. About 215,848 humpback whales were hunted in the Southern Hemisphere. In the Northern Hemisphere, 33,585 were taken. This led to a loss of over 95% of their populations. Now, only about 10,000 humpbacks are left in the world.

Commercial whaling of humpbacks ceased in the Southern Hemisphere in 1963, and they were placed on the International Union for Conservation of Nature’s (IUCN) Red List to aid in their recovery.

What are the current threats to Humpback Whales in Australia?

Humpback whales face several threats from human activities along Australia’s busy coastline. They can become entangled in discarded fishing gear and face ship strikes from large commercial vessels and increased recreational traffic, especially in resting and protected bay areas. Oil and gas companies use seismic blasting to locate gas reservoirs, which can damage whale hearing, essential for communication. Noise pollution can disrupt their ability to follow migratory paths, teach young, and share songs.

Coastal development projects, like marina construction, often involve dredging and sedimentation, polluting the water with noise and debris. This pollution may cause whales to change their resting areas along migration routes.

Where can Humpback Whales be found and what is their Population?

Humpback whales live in every ocean, with a global population estimated at over 140,000 across 14 recognized breeding populations. The southern hemisphere has about 97,000 humpback whales. There are 35,000 to 40,000 off Western Australia, which is the largest group. Eastern Australia has around 30,000 to 35,000 humpbacks. After commercial whaling in Western Australia ceased in 1978, the population has grown at a rate of 10.15% to 13% per year, increasing from fewer than 300 adults.

What is the Status of Global Humpback Whale Populations?

Humpback whale populations have recovered significantly, leading to their downlisting from “Vulnerable” to “Least Concern” on the IUCN Red List in 2008. Southern Hemisphere populations are estimated at around 70% of their pre-whaling numbers. In Australia, Humpbacks are protected under the Environment Protection and Biodiversity Conservation Act (1999) and the Western Australian Biodiversity Conservation Act (2016). In WA, they are listed as a “conservation dependent” species, requiring ongoing management for population stability.

What are Humpback Whales Characterised and Known for?

Humpback whales are known for their social behaviours, including breaching, lob-tailing, and pectoral slapping. They have the largest pectoral fins of any whale, reaching up to 5 meters in length. Their bodies often have acorn barnacles and whale lice, and their heads and pectoral fins feature sensory knobs called tubercles.

Acorn Barnacles on Humpback Whales

The acorn barnacle species Coronulla diadema settles on humpback whale skin. This relationship is commensal, with barnacles benefiting from the water flow as the whale swims. Barnacles filter feed on plankton and may help whales inflict damage during fights. Large barnacle populations can increase drag, but they typically live for up to a year, dropping off during migration or at calving grounds. A single whale can carry up to 450 kg of barnacles.

How long can a Humpback hold their Breath for and why?

Amazingly, Humpbacks can hold their breath for up to 40 minutes, but more regularly every 5-10 minutes when active. Calves can hold their breath for around 5 minutes. Humpbacks use their breath hold for sleeping, feeding, and reproduction, usually staying within the top 200-300 meters of the surface. Unlike sperm whales, which dive deeper and hold their breath for up to 2 hours, humpbacks stay in shallower waters.

Humbp

How does a Humpback Whale sleep?

Humpbacks are conscious breathers, meaning they need to think about surfacing to breathe. They sleep by shutting off half of their brain for about 30 minutes at a time, staying motionless just below the surface. This allows them to breathe and remain aware of potential predators and dangers while sleeping.

How to Tell a Female Whale Apart from a Male

From the surface, it’s difficult to distinguish a female from a male humpback whale unless a calf is present. Females grow slightly larger than males, about 1-1.5 meters longer. Males may have more scars due to barnacles and combat. Females have a ‘hemispherical lobe’ behind the genital slit, about 15 cm wide, which males lack.

Length and Weight of a Humpback Whale

  • Males: 11-15 meters, 25-35 tonnes
  • Females: 12-16 meters, 25-35 tonnes
  • Max recorded length: 18.6 meters
  • Max recorded weight: 40 tonnes
  • Calves: 4-4.6 meters at birth, 0.6-1 tonne

Longest Migration by a Humpback Whale

Western Australian humpbacks migrate up to 13,000 km. The longest recorded journey was 18,840 km from the Antarctic Peninsula to American Samoa and back. Mother-calf pairs may take longer due to rest stops.

Breeding and Birth in the Southern Hemisphere

Western Australian humpbacks breed and give birth during their northern migration in waters warmer than 25°C. Females ovulate between June to November. The gestation period is 11-12 months, aligning with migration patterns.

Whale Blows

Humpbacks have two blowholes, one for each lung. Their blows are bushy and columnar, typically 4-5 meters high, reaching up to 10 meters.

Surface Behaviours of Humpback Whales

  • Tail Lobbing: Throwing the tail or peduncle out of the water, possibly for defense or communication.
  • Tail Slapping: Repeatedly slapping the fluke against the water’s surface, possibly to communicate or stun fish.
  • Pectoral Slapping: Slapping the pectoral fin against the water, possibly for communication or muscle strengthening.
  • Breaching: Launching part or the whole body out of the water, possibly for play, communication, or skin cleansing.
  • Head Lunging: Pushing the head and chin out of the water and slapping the chin against the surface, possibly to alleviate itchiness or remove barnacles.
  • Spy Hopping: Poking the head out of the water in a vertical orientation, possibly to observe surroundings.

Humpback whale tail splashing against the water_Naturaliste Charters_large

Do Humpback Whales Interact with other Species?

Humpbacks sometimes associate with other species like southern right whales, fin whales, and dolphins. Dolphins often harass or play with humpbacks. Humpbacks have been recorded intervening when other species, like grey whales and seals, are attacked by orcas.

What are the Predators of Humpback Whales and how do they Hunt them?

While sharks have been seen feeding on whale carcasses and will generally only prey on the sick, injured or vulnerable humpback calves, killer whales (Orcinus orca) are the primary predator of humpback whales. Orcas hunt in groups called pods. They work together to catch their prey. Sometimes, one orca will swim quickly across the mother’s head to distract her. Meanwhile, other orcas will separate the calf from her side. They guide the calf away by swimming alongside it or by using their bodies. Orcas may grab the humpback calf by the tail and pull them underwater in an attempt to drown them or may puncture their sides and cause them to bleed out.

Humpbacks are not fast swimmers, but they are very agile. This agility makes them good fighters. They will try to defend themselves and their calf by tail lobbing. They slam their strong tail into orcas. This can cause injury or even death due to their powerful force. Often on their southern migration, mothers will generally have an unrelated male that travels with her who is attempting to breed with her if she comes into heat, but also adds extra protection to her and her calf during their journey. Having two large adults protecting the calf increases the chances of that calf’s survival significantly.

A study in Ecuador analysing the battle scars associated with killer whale attacks found that 11.5 percent of adult humpback whales and 19.5 percent of their calves carried scars.

Killer Whale

What is a Competition Pod and how does it work?

A competition pod is the group arrangement of several males in pursuit of a mature and fertile female. Competition is necessary as the sex ratio is 2-3 males per reproductive female (equal ratio overall, however all females aren’t reproducing each year). There is a primary male escort that follows the female at the breeding grounds and typically stays a body length away, defending his right to mate from other potential suitors. A competition pod can form when additional males attempt to compete for the breeding right of that female. These pods can exceed a dozen males, especially if she is a larger female. Competition pods can last from a few minutes to several hours. They involve many behaviors like lunging, lobtailing, bubble blowing, head lifting, ramming, and high-speed chasing. These activities can lead to injuries.

The female is the one usually in the lead and has been recorded to potentially convey their presence to males from surrounding areas through percussive sounds, bringing them in from several kilometres to join in on the action. Most of the action will occur between the primary escort and two or three main challengers who may temporarily work together to outmanoeuvre the primary escort. The main escort may be replaced by a challenger or defend his position. This is to be the closest male when the female is in her oestrous cycle

What is an Oestrous Cycle?

The oestrous cycle can be defined as “the cyclical pattern of ovarian activity that facilitates female animals to go from a period of reproductive receptivity to non receptivity ultimately allowing the establishment of pregnancy following mating”. Humpback whales usually do not have oestrous cycles during pregnancy. However, ovulation can happen soon after giving birth. This occurs while the females are nursing their calves. It is shown that when the calf is lost at or soon after birth, oestrous cycles usually recommence at once. Where the calf is suckled for the normal period, there is no anoestrous (rest) period following the end of lactation as oestrous cycles recommence in July, immediately after (occasionally just before) weaning at the end of June. The exact timing of the cycle is unclear. It is thought to be most active during the northern migration. This period lasts from June to November. The peak activity occurs from July to September

Are Humpback Whales Monogamous or Polygamous?

Humpbacks are polygamous breeders, often having multiple partners in their lifetime and not holding any loyalty to one singular individual. The males also do not have any parental responsibility in the nursing of the calf or to the female whilst she rears the calf, however, have been recorded to guard/protect calves that are not their own in many populations around the world. 

How often does a Humpback Whale fall pregnant? What is their sexual maturity? Can they have Twins?

A female can start ovulating in an oestrous cycle once she gives birth and starts lactating, but generally she may rear a calf once every 2-3 years. Sexual maturity of females range between 4-11 years, when they are between 12-15 metres in length. The females must be of sufficient length to safely carry the 4-4.5 metre calf throughout pregnancy. Humpbacks are uniparous, meaning they give birth to one baby at a time. Twins in cetaceans are possible, however are very rare, occurring in less than 1% of births.

Do all Humpback Whales Sing?

It is thought that only males sing. Little to no information has been found on females singing. Each juvenile male learns from other whales around them on how to conduct a series of sounds and compose intricate “songs.” The males often sing while suspended deep below the surface, their long pectoral fins jutting rigidly from their sides. The songs can last up to 20 minutes and can be heard over distances exceeding tens of kilometres. The whales repeat the same song for hours, often incorporating their own modification which may be adopted by others in the group. It can take 2-5 years for the entire song to change in composition.

These songs are thought to be a method in serenading females, determining or facilitating male-male interactions, a way for males to signify status and/or attract females into a male aggregation, or of course a combination of all proposals. 

How long do Humpback Whales Live for?

It is thought their lifespan is between 50-75 years with the oldest recorded at 95 years!

What is the Gestation Period for Humpback Whales and how do they give Birth?

Gestation is between 11-12 months and it is thought that the birthing process is relatively quick, estimated at around 15 minutes! Any longer than that and the calf has a high risk of drowning. They are born tail first. Once they are out, the mother quickly helps push the calf to the surface. This helps the calf take its first breaths. Little information is known about their births as few have ever been recorded or seen by scientists.

Do Humpback Whales Breastfeed? How long do they Breastfeed for? 

Yes, humpback whales like other mammals have mammary glands in which they can nurse their calf for the first few months of their life. Unlike humans, humpbacks and other whales do not necessarily have nipples for the calf to attach to in order to receive the breast milk. Therefore, the breastfeeding process is quite different to what we know breastfeeding as. When the calf is receiving the milk, it is secreted into the water column via muscular contraction around the mothers mammary gland.

The breast milk is approximately 60-70% fat, which prevents the milk from dissolving into the water without a latching process. Instead it conglomerates (sits in a blob) and the calf can eat it straight from the water. The fatty consistency of the breast milk is highly nutritious and allows for the calf to put on weight easily in a short amount of time. They tend to breastfeed for the first 6-12 months, depending on the individual, and are usually weaned sometime during the summer feeding in Antarctica.  

How many Calves will a Female Whale have in their lifetime? When do Whales Stop Reproducing? 

After reaching sexual maturity at about 4 years old, females can reproduce every 2-3 years. They can live up to 75 years. In their lifetime, they can have 20-25 calves! Females do not go through menopause but may slowly cease reproductive behaviours as they get towards the later stages of their life. Little is known about if and when females stop reproducing once they get to a certain age. 

Do the Humpback Whales have Families they stay with for Life?

No. Unlike species of dolphins such as orcas, humpback whales do not have family units that they stick with for their entire lives. The only family bond is between the mother and her calf during the first year of life. After that, the calf becomes independent. Humpbacks are social animals. They do not have family groups. They often travel in small groups. These groups can have at least two whales and sometimes up to 10 or more. They seem to enjoy connecting and interacting with others. This social interaction also acts as a safety measure. Traveling in groups helps protect them from potential predators. 

Do you ID the Humpbacks? How can you Distinguish Individual Whales?

Yes. Scientists can use the underside of humpback flukes (tails) to tell individuals apart. Each fluke has unique black and white colors, scars, and serrations on the trailing edge. You can identify them by looking at their dorsal fins. Check the shape, size, and any scars present. There is an online citizen science platform called ‘HappyWhale’ (https://happywhale.com/home). Anyone with an account can upload ID photos of whales. Users can also log their data and information about whales in a specific area. Some humpback individuals have been tracked via photo ID for more than 40 years! 

How do Humpback Whales Communicate?

Humpback whales can make moans, grunts, blasts, and shrieks. They can also sing, call for food, and make trumpet sounds. Through different sounds like ‘throps,’ ‘wops,’ and grunts, each sound is used in specific situations. They are used differently based on the interaction between certain people. For example, it is believed that ‘wops’ are used between a mother and her calf. ‘Throps’ are for general communication between any animals. Grunts are used when many animals gather in a group. 

A humpback breaching the water

What is the Evolution of Humpbacks Whales?

Whales started to evolve over 50 million years ago. Their ancestors lived on land before becoming aquatic. As their ancestors adapted to living in water, their nostrils slowly shifted back on their snouts. This change led to their nostrils being positioned on top of their heads. When humpback whales swim, they move their tails up and down, as opposed to side-to-side like a fish. This is a side effect of evolving from land mammals. Their backbones did not naturally bend side to side, only up and down

Sizes and Weights of Humpback Whale Body Parts

Whale Brain

A humpback brain can weigh over 6 kilograms, nearly 5 times the weight of a human brain! Patrick Hof and Estel Van der Gucht from Mount Sinai School of Medicine in New York studied the humpback whale brain. They found a type of neuron called a spindle neuron in the cortex, also found in humans. The function of spindle neurons is not well understood. They might be involved in cognition, learning, remembering, and recognizing the world. Spindle cells are affected by Alzheimer’s disease and other brain disorders like autism and schizophrenia in humans. It is unknown if whales can suffer from these disorders.

Whale Lungs

Humpbacks have two blowholes, one for each lung. Each lung is about the size of a small car! A humpback whale’s lungs can hold approximately 5000 litres of air. In humans, our lungs take up about 7% of the body cavity, while a whale’s lungs take up only 3%. Larger lungs in whales would mean more nitrogen absorption, creating toxicity and decompression illness. To prevent this, their lungs are relatively small. Humpbacks adapt to retain as much oxygen as possible while diving.

Scientist Scholander proposed that cartilage surrounding the trachea prevents airway compression under pressure. This allows the alveoli to collapse, reducing gas exchange and preventing high nitrogen levels in the blood. The depth of lung collapse depends on diving lung volume. After alveoli collapse, surfactant is required for re-inflation. In marine mammals, surfactant reduces alveolar surface tension and is produced and released via hormones. In terrestrial mammals, surfactant production occurs via hyperventilation. Through this process, cetaceans can use nearly 90% of the oxygen in each breath, whereas humans can only use about 75%.

Width of tail

The fluke (tail) can be up to a third of body length and it is fully cartilaginous. The width can be up to 5 metres.

Whale Heart

The humpback heart can weigh as much as 199 kilograms! It has been observed that their hearts have large amounts of glycogen. This suggests that their heart tissues can perform better without oxygen than those of land mammals (Pfeiffer, 1990; Pfeiffer and Viers, 1995). The highest heart rate recorded for humpback whales is about 40 beats per minute. This supports the idea that larger animals have slower heartbeats. 

Humpback Whale Oxygen Storage and Distribution

Humpback whale blood contains 60% hemoglobin, compared to 30% in humans. Whales have more blood than humans. Their blood makes up 10-20% of their body volume. In humans, blood is about 7% of body volume. Whales store oxygen in their muscles using a protein called myoglobin. The myoglobin levels in whales can be up to 30% higher than in land animals. Myoglobin holds up to 35% of oxygen. This is important for keeping a steady supply to the brain while underwater.

A study in Brazil found humpback whales have up to 13 spleens. These spleens contract during dives, releasing fresh blood with oxygenated red blood cells. During extended dives, when aerobic metabolism is insufficient, whales accumulate byproducts like lactic acid and hydrogen ions. To save oxygen, whales have several body responses. Their heart rate slows down (bradycardia). They also narrow blood vessels to send oxygen to important organs. Their core body temperature drops. They experience low metabolism and can handle low oxygen and high CO2 levels.

Do Humpback Whales Equalise?

Humpback whales have external ear openings on each side of their head. Their dense ear bones resist pressure during dives. A waxy plug blocks seawater from entering the auditory canal. Whales effectively equalize due to flexible material lining their middle ear cavity. When diving, their sinuses flood with blood, reducing air space and allowing equalization. Large Eustachian tubes enable easy air displacement from the mouth to the ear.

Humpback Whale Blowhole

The humpback blowhole developed from nostrils moving to the top of the head. This change helps save energy when breathing at the surface. The blowhole acts like a valve, closing underwater and opening at the surface. A nasal plug covers the nasal passage to the blowhole. It relaxes when underwater and tightens at the surface to allow breathing.

When a whale exhales, a spout is seen, indicating the whale’s presence and often its species. The exhaled air is higher in pressure and warmer than the surrounding air, causing condensation and forming the blow.

Upclose of a humpback on a Dunsborough Whale Watching Tour

Can Humpback Whales Feel Pain and Emotions?

Humpbacks can feel physical pain and are thought to have a pain tolerance similar to humans. Entangled whales often emit moans and wails of pain and show visible soreness from lacerations. Humpbacks can also feel emotional pain. For instance, mothers mourning the loss of their calves produce wailing sounds.

In Mexico, underwater cameraman Rodrigo Friscone Wyssmann observed a female humpback whale mourning her calf, killed by orcas. The mother sat motionless, while a male escort swam nearby, potentially comforting her. They stayed near the site for nearly a week. Another example happened in Long Island. A lighthouse keeper heard loud, sad whale sounds. This was after a breastfeeding calf washed ashore. The sounds showed that a mother whale was searching for her calf.

Humpback whales have special cells in their brains. These cells are connected to empathy and intuition. This suggests that they can understand and feel for other whales in trouble.

Humpback Whale Placenta

Limited information exists about the placentas of humpback whales. In 1994, researchers in Hawaii found a floating part of the placenta. It measured about 1.2 to 1.5 meters long. The part that was underwater was about 2.4 meters long.

Do Whales Get Periods?

Humpback whales do not menstruate like humans. They have an oestrous cycle. They ovulate and release an egg from June to November. This egg can be fertilized. Mothers can go into heat while nursing or soon after losing a calf. We don’t know much about their heat cycles. The most common cycle happens when a mother does not ovulate after giving birth. Sometimes, she may not conceive even if she is in heat. This leads to having one calf every two years.

How Does a Humpback Whale Umbilical Cord Detach?

There is limited information on whale births, but it is believed that the umbilical cord detaches itself during birth. A placenta found in Hawaii in 1994 had an umbilical cord approximately 5 centimeters wide and 1.3 meters long.

How Often Do Whales Poo and How Much?

Humpback whales eliminate approximately 9.42 kg of nitrogen per day while feeding. They typically release their bowels at the surface when taking a breath. Whale poop is like a loose mix of particles. It helps create the ‘whale pump,’ which brings nutrients to the surface.

Can Humpback Whales Smell?

Whale olfaction is not well understood, and many cetaceans are believed to be incapable of smelling. Marine mammals like whales breathe differently from gill-breathing species like sharks. Whales must hold their breath when they are underwater. Sharks, on the other hand, take oxygen from the water. This helps them ‘smell’ their surroundings through particles that pass over their gills.

How Good is a Humpback’s Hearing?

A study by Tubelli and others found that a humpback whale’s middle ear works best between 15 Hz and 3 kHz. It can also work between 200 Hz and 9 kHz, depending on where the sound comes from. Humpbacks emit sounds of both low and high frequencies, requiring a broad range of sound interpretation.

Do Humpback Whales Get Sick?

Respiratory infections are the most common diseases in cetaceans. Not much is known about how they respond to these infections. Humpback whales can produce mucus in their lungs. This mucus has been seen to be ‘coughed up’ when they exhale at the surface. Cetaceans can contract a range of infectious parasites and diseases, often leading to fatality.

Can Humpback Whales Sneeze and Cough?

Humpbacks do not sneeze or cough as humans do. Their digestive and respiratory systems are separate, unlike humans. Coughing and sneezing typically clear the airways of irritants and mucus, which whales can manage during exhalation.

How Do Humpback Whales Cool Off or Warm Up?

As mammals, humpbacks need energy to stay warm. They warm up through movement, such as breaching or tail slapping. To cool off, they may hold their tail flukes or pectoral fins out of the water. The large surface area allows cool air to pass across their skin, removing heat. This behavior happens in high latitudes where the water is warmer. This is especially true in northern Australian waters during winter breeding.

How Long Does a Whale Calf Stay with Its Mother?

Humpback calves stay with their mothers for the first year of their lives before becoming independent.

What is the Survival Rate of Humpback Whale Calves?

A 2018 study estimated natural calf mortality rates between 15-24% during their early life stage. This rate is likely higher due to predation events by orcas during their first year, which are often not recorded.

Percentage of Successful Orca Predation Events

A 2015 study at Ningaloo Reef recorded 22 orca attacks on humpback whale calves. Of these, 64% ended in kills, while 36% were unsuccessful. Satellite-tagged data showed orcas attacked eight humpback calves, with 43% of known outcomes resulting in kills. All attacks targeted yearlings or calves; orcas left immediately if no calf was present.

Length of a Humpback Whale’s Penis

At puberty, a humpback whale’s penis averages just over 1 metre. In sexually mature males, it ranges from 0.97 to 1.88 metres.

Speed of Humpback Whales

Humpback whales can swim as fast as 27 km/hr. However, they usually cruise at speeds between 3.8 and 14.3 km/hr.

Why Do Humpback Whales Breach? Does it Require Lots of Energy?

Humpbacks breach for various reasons. Calves and sub-adults breach as a form of play. Breaching also helps cleanse and exfoliate dead skin cells and parasites. It relieves itchiness, with the force of hitting the water aiding in alleviating irritation. Adults may breach for communication over long distances.

Experience Humpback Whales with Naturaliste Charters

Experience Humpback Whales from May to November in the beautiful Margaret River region, Western Australia, with Naturaliste Charters. Naturaliste Charters is the first Whale Watching Company in South West, Western Australia. We take pride in offering a fun, educational, and inspiring Whale Watching experience. Join them from May to August in Flinders Bay, Augusta, and from August to November in Geographe Bay, Dunsborough.

 

Hero Image

More Articles For You

Charting New Waters – Naturaliste Charters Upgrade

Charting New Waters – Naturaliste Charters Upgrade

Naturaliste Charters Upgrade Now Complete for the 2025 Augusta Whale Watching SeasonThe 2025 Augusta whale watching season has officially launched. Guests...

Read more
Sperm Whale: Master Navigators of the Deep

Sperm Whale: Master Navigators of the Deep

Sperm Whale Echolocation: Master Navigators of the DeepCover Image Credit: SDM Diving Sperm whales (Physeter macrocephalus) are the largest member of the...

Read more
An Ocean Collaboration With Subsea Estate

An Ocean Collaboration With Subsea Estate

A New Ocean Adventure Begins with Subsea EstateThis winter in Augusta, Naturaliste Charters partners with Subsea Estate to offer a new perspective on our shared...

Read more