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Endangered animals

Last Updated: Tuesday May 10 2005 10:58 GMT

Why are they dying out?

Crocodile heads

• Pollution, chopping down rainforests and building all affect animal habitats which means they have nowhere to live and nothing to eat.

• Another big problem is humans introducing new plants and animals on to small islands. This can result in older species being wiped out.

• Buying and selling some exotic animals for their skins like crocodiles is illegal in many places but people still do it.

• Elephants are killed for their ivory tusks which are used for jewellery and medicine in some countries.