`->`Find out why some rare animals have become extinct.
`-` Contamination of the environment
`-` Global climate change
`-` Encroachment on living environment, make full use of agricultural land
`-`Catch fish
`-` Mining and industrial activities
`-` Due to human overexploitation and habitat change due to climate change
`- `Due to the high economic value of precious animals, hunting has led to an extinction
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