40 Interesting Facts About Dolphins
Dolphins are aquatic mammals that belong to toothed whales. They are among a few animals present in oceans and rivers . There are nearly 40 species of dolphins. Most of these live in oceans (such as common dolphins, bottlenose dolphins , etc.), while few species have adapted to live in freshwater (Amazon river dolphins, Indus river dolphins, etc.). Six species of dolphins are known as whales. These include killer whales , pilot whales, false killer whales, etc. The largest dolphin is the orca or killer whale, which can grow up to 30 feet long. Maui dolphin is the smallest species with a length of up to 5 feet. Dolphins mostly live in temperate and tropical waters. However, they are present in every ocean and sea except the Aral Sea and the Caspian Sea. Most vertebrates have five tastes, but dolphins and whales can only taste salty flavors . They lost taste sensations for all flavors except salt around 53 million years ago. ( Source ) Oceanic dolphins have sharp vision both in