Ambergris is the concretion in the intestine of the sperm-whale.

龙涎香是抹香鲸肠内的结石。

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Ambergris is the concretion in the intestine of the sperm - whale.

龙涎香是抹香鲸肠内的结石。

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The scattering of the sperm chromatin in the polar nucleus takes about 1 hour.

精核染色质在极核里分散的时间大约需用1小时。

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The fourteen meter-long skeletal remains of a sperm whale hang directly above it.

VOA: special.2011.06.29

The result of fertilization now is a new cell that is the union of the sperm and the egg, and it's called the zygote and it contains the diploid number of chromosomes, genes.

受精就是产生,一个精卵结合的新细胞,称为受精卵,它含有二倍体的染色体基因

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This one cell, this one fertilized cell which is unique because it's the - its chromosome contains the combination of the sperm and the egg, develops into an embryo and then on birth develops into a human.

这个受精卵,是独一无二的,因为它的染色体,包含了精子和卵子的组合,并由此发育成为一个胚胎,之后形成一个人类个体

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Ambergris is found in the innards of the sperm whale and used in perfumes after it has been vomited up.

BBC: Charlie Naysmith with the ambergris

In the fullness of time, perhaps men will think likewise and have some of the sperm of their carefree, mutation-free youths frozen in case they fancy a little procreation in their old age.

ECONOMIST: Genetic damage and paternal age: Father figures | The

It has been known for years that in a range of animals from insects to birds the males increase the quality and quantity of the sperm they ejaculate when those sperm are likely to find themselves in competition with sperm from another male.

ECONOMIST: Sex: Twin peaks | The