Cetacea are deliberate breathers who must be awake to inhale and exhale. When stale air, warmed from the lungs, is exhaled, it condenses as it meets colder external air.

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 milk, and have hair —all features of mammals.

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, …

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 …

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.

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

The Cetacea are one of the most distinctive and highly specialized orders of mammals. They include the largest animal that has ever lived, the blue whale; the highly intelligent and communicative dolphins; the tusked narwhals and blind river dolphins and singing humpback whales — nearly eighty living species in all.

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 …

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 individual groups or ‘families.’. Each species has a scientific name and a common name.

4 days ago · The Cetacea (whales, dolphins and porpoises) currently include 90 species that inhabit the world's oceans, lakes and rivers. Some are cosmopolitan, occurring in marine waters from pole to pole, while others are restricted by ecology and population status to small ranges of a few thousand square kilometers or less.