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Overexploitation can be a big _________ to fish populations.

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Some animal species have become _________ endangered due to habitat loss and illegal hunting.

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They have _________ and returned to sea more than 700 baby sea turtles this month.

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When their natural habitats are _________ by developments, many species will be in danger.

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The habitat destruction caused by deforestation is _________ the impact of urban development on wildlife habitat.

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Held in _________ for many years, the lion suffered from considerable distress.

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_________ urgent action is taken to address overfishing, marine ecosystems will continue to degrade.