The unusually high mortality rate among dolphin calvesin the industrially contaminated waters along Florida's Gulf Coast is probably the result of their being poisoned by their mother's milk.
在佛罗里达海湾沿岸被工业污染的水域中，海豚幼崽异常高的死亡率可能是被它们母亲的乳汁毒害的结果。
2
He stated that 2 or 3 calves are injured in each practice session and have to be replaced.
他说，每场练习都有2 - 3头小牛受伤，不得不被替换下去。
3
Elephants in the wild are often assisted during the birthing process by other females of their species and have been known to harm their calvesin the frenzy of giving birth.