But most lose this ability once they reach sexual maturity, the scientists wrote.

但科学家们写道，大多数水母一旦达到性成熟就会失去这种能力。

She says Marcel's humping is not a phase. Apparently, he's reached sexual maturity.

她说马修乱性不是暂时的，显然它已性成熟。

At that age, they reach sexual maturity, meaning the fish were able to produce young.

它们在这个年龄达到性成熟，这意味着它可以繁殖后代。

Permanent infertility can occur if puberty never begins or fails to complete and sexual maturity is never reached.

若青春期一直不出现或是未能发育至性成熟阶段，就有可能导致永久不孕不育。

Also shocking: the researchers estimate that the sharks live at least a century before they reach sexual maturity.

研究人员估计格陵兰鲨鱼至少要到100岁才能达到性成熟。

Fewer yet will survive to sexual maturity.

更少的人会活到性成熟。

Like most living things, the vast majority of animals gradually degenerate after reaching sexual maturity in the process known as aging.

正如大部分的生物，大部分的动物在达到性成熟之后便逐渐退化，这正是我们所熟知的“老化”。

Males and females vary, with females typically reaching sexual maturity sooner.

雄性和雌性各不相同， 雌性通常更早达到性成熟。

What happened when they reached sexual maturity?

当他们达到性成熟时发生了什么？

It turns out that they don’t even reach sexual maturity until they’re around 156 years old!

事实证明，他们直到 156 岁左右才达到性成熟！

Once they leave these shallow waters, they don't return until they reach sexual maturity ten years later.

一旦他们离开这些浅水区，他们将在十年后性成熟之前不会返回。

They won't have their parents distinctive  white head and yellow bill until they're around five years old, which is also when they  reach sexual maturity and can start breeding.

他们要到五岁左右才会让父母拥有与众不同的白头和黄嘴，这也是他们达到性成熟并可以开始繁殖的时候。

Alongside growth and sexual maturity, this system regulates everything from your sleep to the rhythm of your beating heart, exerting its influence over each and every one of your cells.

除了生长发育和性成熟，该系统还调节从睡眠到心跳节律的一切，对您的每一个细胞产生影响。

But your pituitary — which is nestled all comfy under your brain — produces follicle-stimulating hormone, which helps regulate growth and triggers sexual maturity, and it only targets specific cells in the ovaries and testes.

但是你的垂体——它舒适地依偎在你的大脑下面——产生促卵泡激素，帮助调节生长和触发性成熟，它只针对卵巢和睾丸中的特定细胞。

Ancient Aztec people considered it the incarnation of a God named Xolotl— hence the axolotl's name, roughly meaning " water monster." Axolotls reach sexual maturity with gills and a tadpole-like dorsal fin.

古代阿兹特克人认为它是名为 Xolotl 的神的化身——蝾螈的名字由此而来，大致意思是“水怪” 。 蝾螈通过鳃和蝌蚪状背鳍达到性成熟。