Unlike most other whales, the beluga has a flexible neck that enables it to turn its head in all directions.
Beluga Whale © Clifton Hill
Belugas are also called white whales, and their unusual colour makes them one of the most familiar and easily distinguishable of all the whales. Calves are born grey or even brown and only fade to white as they become sexually mature around five years of age.
In early 2014 researchers have recorded a Cuvier’s Beaked Whale diving for over two hours into the depths of just under 3000 meters (nearly two miles) below the ocean surface, which represents both the deepest and the longest dive ever documented for any marine mammal.
Humpback whales sleep upside down.
A Narwhal’s tusk protrudes out the left side of the upper jaw, which forms of a left-sided corkscrew and can be as long as 3 meters.
Narwhals © Paul Nicklen
Narwhals (Monodon monoceros) are cetaceans that live year-round in the Arctic circle.
They feed in deep bays and inlets, where they find a good supply of Arctic cod, squid, and other food such as flatfish, pelagic shrimp, and cephalapods.
A sperm whale’s tooth is the size of a big peanut-butter jar.
An adult blue whale’s heart is more than 2.5 m wide and weighs around 900 kg.
The gray whale migrates more than 10,000 miles each year, the longest migration of any mammal.
The blue whale, the largest animal on our planet ever (exceeding the size of the greatest dinosaurs) still lives in the ocean.
It’s heart is the size of a Volkswagen.
