How do animals and plants use smell?

Find out how animals and plants use smell to communicate.

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Picture of fly with doughnuts from 'How do different animals taste things?' BBC Bitesize

How do different animals taste things?

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Screengrab showing an insect pollinating a flower

How do animals and plants use smell?

A screengrab of a brown bear from How do different animals smell video

How do different animals smell?

This screengrab shows a pit viper hunting for its prey with infrared.

How do animals sense temperature?