Born and raised in a zoo, these animals would not be able to survive in the wild.

在动物园出生和长大的这些动物无法在野外生存。

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The adorable female calf is the second black rhino born this year at the reserve, but it is too early to tell if the calves will make good candidates to be returned to protected areas of the wild.

这头可爱的雌性小犀牛是该保护区今年出生的第二只黑犀牛，但要判断这些幼崽是否会成为返回野生保护区的好的候选者还为时过早。

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M13 was the 13th male from that group to be born in the wild.

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Half of the chimpanzees were wild-born, whilst half were reared in the orphanage.

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To reach their conclusion, Dr Rich and Dr Wolfe studied the DNA sequences of malarial parasites collected from nearly 100 wild or formerly wild chimpanzees born in central and west Africa.

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