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Animals, and plants which are harmless in one country may become deadly when introduces into another.
Introduced animals may change their food sources and other aspects of their ecology, cutting across the established pattern of the native fauna.
Once firmly established, these pests are difficult to eradicate, especially as they often have no natural enemies in their new countries. With extensive new food supplies- available their spread can be exceedingly rapid.
francis1897 answered the question on February 28, 2023 at 05:08
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