多洛式法则，如果物种的特质一旦失去，就意味着这种特质的永远失去。该法则由科学家路易斯•道罗在19世纪提出。

Dollo's Law, a theory proposed by the scientist Louis Dollo in the 1800s, states that when a particular trait is lost in a species, it never comes back.

youdao

多洛式法则，如果物种的特质一旦失去，就意味着这种特质的永远失去。该法则由科学家路易斯•道罗在19世纪提出。

Dollo's Law, a theory proposed by the scientist Louis Dollo in the 1800s, states that when a particular trait is lost in a species, it never comes back.

youdao