AQA Populations in ecosystems
OCR A Populations and sustainability
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SubscribeWhite-clawed crayfish are in decline. Conservation biologist Alli Cartwright explains that to prevent their extinction we need to captive-breed them for reintroduction, eradicate non-native crayfish, and educate people about crayfish
AQA Populations in ecosystems
OCR A Populations and sustainability
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