Still, Rodda said a few species could potentially spread throughout many of the southern states.
然而，瑞达指出，有几种蟒蛇很可能蔓延到南部的许多州。
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"They will eat almost every vertebrate of the right size, but they mostly prefer birds and mammals," said USGS biologist Gordon Rodda, who co-authored the 350-page study.