来自《耶鲁大学开放课程：心理学导论 第12集》
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In the long run, "B" will actually out-produce gene "A"长期来看 后者B将会胜过前者A -
because in fact,因为事实上 -
"B" will be healthy while other vampire bats get sick.在其他吸血蝙蝠生病时 B会保持健康 -
And then so the offspring will do better.其后代也会表现出色 -
An even sharper example is an example of warning cries.再举一个更尖锐的例子 危险警告 -
So, gophers give warning cries when there's a predator.北美地鼠遭遇捕食者时会大声喊叫 -
It is extremely adaptive to give a warning cry.发出危险警告是一种适应行为 -
Sorry.抱歉说错了 -
It's extremely adaptive to respond to a warning cry.对危险警告的回应是适应行为 -
You hear a warning cry, you--你听到了危险警告 -
"Oh, crap," You run away.嘟囔一声 天哪 然后跑了 -
It is not very adaptive to give a warning cry.发出危险警告不是适应行为