While the majority of cetaceans live in marine environments, a small number reside solely in brackish or fresh water. Having a cosmopolitan distribution, they can be found in some rivers …

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 …

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 …

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 …

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 …

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 …

Aug 2, 2023 · Cetaceans are a group (Cetacea) of marine mammals comprising all whales, dolphins and porpoises. On this page you’ll find out what cetaceans are, cetacean …

Cetacean is the collective noun used to describe all 90 species of whales, dolphins and porpoises. The word cetacean has its origins in Latin (Cetus) referring to a large sea creature and Greek …

Taxonomy classifies whales, dolphins and porpoises as the Order of Cetacea (known commonly as cetaceans) and divides this group into two suborders: Within each of these suborders are …

: 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 …