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Ancient crayfish and worms may die out together

Research suggests that bizarre, tentacled worms which live attached to crayfish in the rivers of Australia are at risk of extinction – because the crayfish themselves are endangered.

It would be an example of coextinction, where one organism dies out because it depends on another doomed species.

Just a few millimetres long, the worms eat even tinier animals in the water or inside the crayfish gill chamber…

Source: Ancient crayfish and worms may die out together – BBC News

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