Showing posts from July, 2021


Dolphins are aquatic mammals that belong to toothed whales. They are present in oceans and rivers . There are nearly 40 species of dolphins. Most of these live in oceans (including 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 ft. long. Maui dolphin is the smallest species with a length of up to 5 ft. Dolphins mostly live in temperate and tropical waters. But they are present in every ocean and sea around the globe except the Aral Sea and the Caspian Sea. Most vertebrates have five tastes. But dolphins and  whales  can only  taste salty flavors . ( Source ) Oceanic dolphins have sharp vision both in and out of water. They can see forward, backward, and sideways thanks to their 180 O visual