So this is not trivial, given the idea that we want to revive extinct species, because it turns out that an African and an Asian elephant can actually interbreed and have live young, and this has actually occurred by accident in a zoo in Chester, U.K., in 1978.
这其实很重要 因为我们要复活灭绝的种类 因为我们发现非洲象和亚洲象 是能够杂交产生后代的 这在1978年的英国切斯特的一座公园里 是有发生过的