What do all animals in the order cetacea have in common?

Answer 1

Whales, dolphins and porpoises (Cetacea), also referred to as cetaceans, are a group of marine mammals that includes baleen whales (such as gray whales, right whales, fin whales, blue whales and minke whales) and toothed whales (such as river dolphins, Narwhals, porpoises and dolphins).

Answer 2

The order Cetacea is known for its marine mammals, such as whales and dolphins. In short, Cetaceans are aquatic mammals that once had land-dwelling ancestors, but have adapted to live in the ocean. Cetaceans share similar body parts and types, with flippers for forelimbs, blubber for protection, vestigial hindlegs, and horizontal tails (as a opposed to most fish's vertical ones). All Cetaceans breathe air, like other mammals, and need to surface occasionally to breathe through their blowholes.

Answer 3

All animals in the order cetacea, such as whales, dolphins, and porpoises, are aquatic mammals that are adapted to living in water. They have streamlined bodies, flippers for swimming, and blowholes on top of their heads for breathing. They also give birth to live young and nurse their offspring with milk.