无毒蛇 meaning in English

colubrid snakes
innocua

Do you know how to distinguish a poisonous snake from a harmless one
你知道如何分辨毒蛇和无毒蛇吗？
It was not forced upon them by the survival competition ; they could have caught and lived on prey without using poison , just as the thousands of non - poisonous snakes still do
毒液不是生存竞争强加给它们的。如果不用毒液，它们也能靠捕捉到的动物生存，就像几千种无毒蛇那样。