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An introduction to giant mammals of the sea the whales

Here are some incredible facts about whales and their lives in the oceans. Humpback whale Tim Stenton There are an incredible amount of different species of whale and they all have their own unique identities and characteristics! Check out some fun facts below about all the known whales in our oceans. Did you know that you can adopt an orca actually a dolphin!

You'll get monthly updates on your adopted orca or humpback, a magazine every three months and a welcome pack with certificate! Find out more at adopt an orca or adopt a humpback. Which is the biggest whale?

The Largest Animal Ever: The Blue Whale

The blue whale is the largest creature ever to have lived on Earth; it is larger than any of the dinosaurs. The biggest recorded blue whale was a female in the Antarctic Ocean that was 30. The tongue alone of a blue whale can weigh as much as an elephant and an entire football team could stand on it! The heart of a blue whale is about the size of a VW Beetle car and weighs up to 450kg. More facts about blue whales.

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How big is the calf of a blue whale? Blue whales are pregnant for 10-12 months. The newborn calf is about 7. The mother and calf may stay together for a year or longer, until the calf is about 13 m long. Blue whales reach maturity at 10-15 years. Which whale is the deepest diver? A Cuvier's beaked whale has been recorded to dive to a depth of 3km for over 2 hours. Sperm whales are also champion divers.

Adults can stay underwater for almost two hours and dive to depths of 2,000 metres or more. They eat squid, which can live very deep in the ocean, so sperm whales have to dive down into the deepest parts of the sea to catch them.

Which whale has the biggest brain? The head also consists of a cavity large enough to park a car inside that contains a yellowish wax called spermaceti that was much sought after by whalers. Which whale has the thickest blubber and longest baleen? The bowhead whalewhich lives exclusively in the Arctic, has the thickest blubber of all whales. It can reach a whopping 70cm in thickness. These whales also have the longest baleen — the comb-like structures hanging down from their upper jaws used as a sieve to filter food from the sea-water.

These baleen plates can reach up to 5 metres in length. Which whale has the largest testicles? The southern right whale has the largest testes in the animal kingdom —each pair weighing around a tonne.

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Which whale has the longest tooth? The male narwhal has two teeth. In Europe, these tusks were once sold as the horns of the mythical unicorn. Which is the most endangered whale? Only around 400-500 individuals currently exist with fewer than 100 North Pacific right whales remaining.

Here, a genetically distinct population of Bryde's whales has recently been discovered that may have fewer than 50 individuals remaining. Which whale lives the longest? In the wild whales live for a long time - generally the larger species living longest. Bowhead whales spend their lives in cold Arctic waters. Which whale makes the loudest sound?

  • The biggest recorded blue whale was a female in the Antarctic Ocean that was 30;
  • Tweet this article Manatee Manatees, also known as sea cows, are gentle herbivores that live in marshy areas in tropical and subtropical waters;
  • A typical blue whale call will last for 10 to 30 seconds and is a very low frequency sound between 10 and 40 Hz;
  • Blue whales reach maturity at 10-15 years;
  • By gulping enormous amounts of sea water containing the live krill the blue whale closes its mouth and flushes the sea water back out through the filter leaving the krill behind for it to swallow;
  • The worldwide blue whale population is not known, however, blue whales are considered endangered according to the U.

More facts about beluga whales. But while a sperm whale's sound lasts for only around 100 microseconds a microsecond is 1 millionth of a seconda blue whale's call can last up to 30 seconds.

Sounds over 120-130 decibels are painful to human ears. The songs have the largest range of frequencies used by whales, ranging from 20-9,000 hertz. Only male humpback whales have been recorded singing.

Facts about whales

They sing these complex songs only in warm waters where they breed and give birth. In cold waters, they make rougher sounds, scrapes and groans, perhaps used for locating large masses of krill the tiny crustaceans that they eat.

An introduction to giant mammals of the sea the whales

Which whale makes the longest migration? The humpback whales that feed in Antarctic waters and swim north to breed off the coasts of Colombia, Panama and Costa Rica make one of the longest confirmed migration of any mammal. Gray whales also migrate huge distances and some may even rival the humpback for distance travelled.

Some travel a round-trip of between 16,000—20,000 km 10,000—12,400 miles every year between their winter calving lagoons in the warm waters of Mexico and their summer feeding grounds in the cold Arctic seas, however a female grey whale has recently been recorded as having made an even longer round-trip of 22,500km 14,000 miles migrating between the east coast of Russia and the breeding grounds of Mexico.

To put this into perspective, the continent of Africa is approximately 8,000 km 5,000 miles from north to south. Despite their size, the fin whalethe second largest whale, is known as the "greyhound of the sea" and can reach speeds of up to 20mph 32kph!

  • Check out some fun facts below about all the known whales in our oceans;
  • These baleen plates can reach up to 5 metres in length;
  • Tweet this article Sea Otter This member of the weasel family is also the smallest marine mammal, with females weighing about 60 pounds and males weighing up to 90 pounds;
  • Here, a genetically distinct population of Bryde's whales has recently been discovered that may have fewer than 50 individuals remaining.