Cetacea (/ s ɪ ˈ t eɪ ʃ ə /; from Latin cetus ' whale ', from Ancient Greek κῆτος () ' huge fish, sea monster ') [3] is an infraorder of aquatic mammals belonging to the order Artiodactyla that includes whales, dolphins and porpoises.Key characteristics are their fully aquatic lifestyle, streamlined body shape, often large size and exclusively carnivorous diet.

Jan 30, 2025 · cetacean, (order Cetacea), any member of an entirely aquatic group of mammals commonly known as whales, dolphins, and porpoises. The ancient Greeks recognized that cetaceans breathe air, give birth to live young, produce …

Aug 2, 2023 · A cetacean is a member of the infraorder Cetacea – a group of marine mammals that includes whales, dolphins, and porpoises. There are approximately 90 species of cetaceans, divided into two main groups, the parvorders Mysticeti (baleen …

Dec 23, 2024 · The term Cetacea is derived from the Latin word Cetus, which means’ a huge fish or a sea monster’ and indicates the unusually bulky bodies of these mammals. Cetaceans are fully carnivorous and feed on plankton, shrimp, squid, …

Read about Cetacea (dolphins, porpoises, and whales) on the Animal Diversity Web.

Learn fun facts about these gentle giants, what conservation efforts are helping to protect them, ways you can be awhale champion and more. Marine mammals in the cetacean family include whales, dolphins and porpoises. These animals are completely aquatic, meaning they spend all of their time in the ocean and cannot survive on land.

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Dec 21, 2024 · The first fossil cetacean, Pakicetus, is from the Early Eocene Epoch. Order Cetacea includes three suborders: there are 81 living species in two suborders, Odontoceti and Mysticeti; the third suborder is the fossil Archaeoceti.

The meaning of CETACEA is an order of completely aquatic mostly marine eutherian mammals consisting of the whales, dolphins, porpoises, and related forms, all having a very large head, a tapering body like a fish and nearly devoid of hair, forelimbs like paddles, no hind limbs, a tail ending in a broad horizontal fin, a large brain, a complex ...

Cetacea (whales, dolphins, and porpoises) is a model group for investigating the molecular signature of macroevolutionary transitions. Recent research has documented the remarkable convergence between echolocating bats and odontocetes across …