What is the difference between "extinct" and "endangered"? Animals and other living things that no longer exist are extinct, and those that ... ... <看更多>
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What is the difference between "extinct" and "endangered"? Animals and other living things that no longer exist are extinct, and those that ... ... <看更多>
At WWF, we talk a lot about 'endangered species.' But what, exactly, does it mean for a species to be endangered? This WWF Wild Classroom ... ... <看更多>