Invasive species - Useful or a nuisance? | Tomorrow Today - The Science Magazine | DW | 21.01.2022

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Tomorrow Today

Invasive species - Useful or a nuisance?

Brown rats, giant hogweed and signal crayfish are all invasive species. That means that they are non-native newcomers. When they displace native species, they can cause great damage. But not every non-native species poses a threat.

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