A dolphin is any one of the 40 extant species of aquatic mammal from the cetacean families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the New …

Jan 23, 2026 · 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 are marine mammals, together with whales and porpoises they are collectively known as cetaceans. Some dolphins live in rivers and estuaries.

Apr 9, 2024 · Six dolphin species are commonly called whales (think killer whales!), and technically, all dolphins are whales because they’re part of the category “toothed whales” in …

Dolphins are small-toothed cetaceans easily recognizable by their curved mouths, which give them a permanent “smile.” There are 36 dolphin species, found in every ocean. Most dolphins …

Dec 9, 2025 · Dolphins are highly intelligent, marine mammals known for their complex behavior, global distribution, and remarkable evolutionary history.

Dolphins are a group of marine mammals that belong to the order Cetacea, which also includes whales and porpoises. They are found in oceans and rivers all around the world and are …

Dolphins are aquatic mammals of the infraorder Cetacea that constitutes five families, including oceanic dolphins, the Indian river dolphins, brackish dolphins, the New World river dolphins, …

The term ‘dolphin’ refers to any toothed whale belonging to the mammal family Delphinidae (oceanic dolphins), as well as river dolphins belonging to the Platanistidae and Iniidae families.

Dolphins are incredibly intelligent, social, wide-ranging and deep-diving marine mammals. They live in complex social groups called pods, often made up of family members.