Various species of dolphins exhibit sexual dimorphism where the males are larger than females. 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) The name dolphin is also applied to members of the fish genus coryphaena (family coryphaenidae), also known as mahimahi. Dolphins are some of the most intelligent marine mammals Find out more about these aquatic animals and how you can contribute to dolphin conservation. Dolphins can be found all over the world and in different environments
Dolphins are marine mammals, together with whales and porpoises they are collectively known as cetaceans Some dolphins live in rivers and estuaries. 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 the order cetacea. Depending on the species, dolphins range in color from white, pearl, and pink to darker shades of brown, gray, blue, and black Dolphins have smooth skin, flippers, and a dorsal fin They have a long, slender snout with about 100 teeth, and a streamlined body.
There are almost 40 species of dolphin in 17 genera.
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