It only takes one sperm to fertilize an egg.
只需一个精子就可以使卵受精。
The sperm fuses with the egg to begin the process of fertilization.
精子与卵子结合开始受精过程。
How does the sperm whale manage to do this?
巨头鲸是怎样做到这点的呢？
Do you know how the sperm whale manages to do this?
你知道抹香鲸怎样设法做到这个的吗？
Sperm whales and giant squid may be mortal enemies.
抹香鲸和巨型章鱼可能是死敌。
One pronuclei is derived from the egg and one from the sperm.
一个是卵细胞核，另一个是精细胞核。
The sperm whale does not feed on small fish like other whales.
抹香鲸不像其他鲸鱼那样以小鱼为食。
Dive with a sperm whale and join the hunt for the giant squid.
与抹香鲸一同潜入深海猎食大王乌贼。
They compared sperm from a fruit fly, sea urchin, rooster, fish and human.
他们比较了果蝇、海胆、公鸡、鱼类和人类的基因。
They compared sperm from a fruit fly, sea urchin, rooster, fish and human.
他们比较了果蝇、海胆、公鸡、鱼类和人类的基因。
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