Dolphin ... A dolphin is a common name used for some of the aquatic mammals in the cetacean clade Odontoceti, the toothed whales.

Oct 16, 2025 · Mammalian dolphins are any of the toothed whales belonging to the mammal family Delphinidae (oceanic dolphins) or the mammal families Platanistidae and Iniidae (river dolphins).

Although dolphins swim in water and appear to be "fish-like" compared to other animals living in the ocean, they are classified as cetaceans (marine mammals) and not fish.

Oct 16, 2020 · Yes, dolphins are mammals and not fish. Despite spending their lives almost completely underwater, and appearing in most ways like fish, they are actually mammals. Dolphins are members …

Mar 9, 2025 · So, even though dolphins spend their lives in the ocean, they are not fish, they are mammals. As discussed above, they share important characteristics common to all mammals, …

Feb 23, 2017 · Although a dolphin looks more like a fish than a ‘typical’ mammal such as a dog or a cat, it has all the characteristics of a mammal. These include: having lungs for breathing air, having a …

Yes, a dolphin is indeed a mammal. In fact, dolphins belong to the order Cetacea, which also includes whales and porpoises. These marine mammals share several key characteristics that define them as …

Jun 16, 2024 · Even though they live in the ocean all of the time, dolphins are mammals, not fish. Like every mammal, dolphins are warm blooded. Unlike fish, who breathe through gills, dolphins breathe …

Nov 6, 2025 · Dolphins and porpoises are both marine mammals but belong to different families. Dolphins generally have longer snouts, more streamlined bodies, and are more social than …

Apr 9, 2024 · Even though they live in the ocean, dolphins and whales, unlike sharks, are marine mammals, not fish. 1 They’re mammals because they breathe air through their lungs, and because …