Dolphins love to talk. Just like people telephone or text each other, dolphins use high-pitched sounds to communicate with other dolphins a long way off. Humans can only hear these sounds using special equipment. Dolphins live in families called 'pods'. Female dolphins whistle to their babies continuously for three days after they are born to help them recognize the sound of their mothers.
Dolphins also use sound to navigate and to locate food - this is called 'echolocation'. They emit clicks using the 'melon' (their rounded foreheads) - the sounds bounce off objects around them and the dolphins 'hear' the echoes through their lower jaws.
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