物种是指个体间能相互交配而产生可育后代的自然群体。已经灭绝的物种是指在过去的50年里在野外没有被肯定地发现的物种。“
濒危野生动物 endangered wildlife ; wild animals in danger ; COSEWIC
濒危的水生动物 Chapter Three
濒危野生植物 endangered wildlife
药用濒危野生动植物 Endangered wildlife resources for medicinal use
珍稀濒危陆生脊椎动物 Rare and threatened terrestrial vertebrate
科学家也正在思考克隆濒危生物，以增加其群落数量。
Scientists also ponder the idea of cloning endangered species to increase their population.
一些民间组织如食猿雕基金会就已经发起了“拯救濒危物种”的活动，以保护鲸鲨以寄其他濒危生物。
Some non-government organizations, like the Haribon Foundation are active with their "save our endangered species" programs to protect the whale sharks as well as other endangered creatures.
我们为保护濒危物种而建立的任何保护区都可能变得毫无用处，因为这些生物被迫随着它们的自然栖息地迁移。
Any preserves we set up to protect endangered species may become useless as the species are forced to migrate along with their natural homes.
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