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Whales are fully aquatic, open-ocean animals: they can feed, mate, give birth, suckle and raise their young at sea. Whales range in size from the 2.6 metres (8.5 ft) and 135 kilograms (298 lb) dwarf sperm whale to the 29.9 metres (98 ft) and 190 tonnes (210 short tons) blue whale , which is the largest known animal that has ever lived.
Whales do not lay eggs. Since they are mammals, they give birth to live young. There are only five known monotremes , or egg-laying mammals, according to the Carnegie Museum of Natural History.
Whales are described in particular by Aristotle, Pliny and Ambrose. [112] [113] All mention both live birth and suckling. Pliny describes the problems associated with the lungs with spray tubes and Ambrose claimed that large whales would take their young into their mouth to protect them.
Portal:Cetaceans/Did you know/1 . A Bottlenose Dolphin Breaching the water...dolphins often leap clear of the water when travelling at speed. This is because the density of water is much greater than that of air and they are able to travel faster by leaping out of the water.
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Since 2017, scientists have followed a hunting spree by two killer whales named Port and Starboard, which have killed at least eight great white sharks off South Africa and left their liver-less ...
[citation needed] Whale watchers have watched mother whales lift their young towards the surface in a playful motion, while making a noise that resembles cooing in humans. [7] This cooing-like noise made by whales seems designed to relax their young [7] and is one of several distinct everyday noises whales are known to make. Unlike some fish ...