Cetaceans (/ sɪˈteɪʃə /; from Latin cetus ' whale ', from Ancient Greek κῆτος (kêtos) ' huge fish, sea monster ') [3] are aquatic mammals belonging to the infraorder Cetacea, in the order …

Dec 11, 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 …

Cetecean is the collective noun used to describe all 90 species of whales, dolphins and porpoises.

: any of an order (Cetacea) of aquatic mostly marine mammals that includes the whales, dolphins, porpoises, and related forms and that have a torpedo-shaped nearly hairless body, paddle …

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 …

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 …

Dec 23, 2024 · Cetaceans are large aquatic mammals with streamlined bodies culminating in paddle-like tails called flukes.

Although hunting and other human activities have endangered most cetacean species, the outlook for many is improving. Whales are highly specialized for life in the water. Most species …

They have an exclusively aquatic life cycle from birth until death. Cetaceans have been linked with humans for thousands of years, providing such benefits as food (for people and sled dogs), …

They evolved from terrestrial animals to an entirely aquatic life form that is completely separated from the land in all aspects of biology. Cetaceans live, breed, rest, and carry out all of their life …