That is the ability of a creature to control its body temperature, even when the surrounding temperature is different.

这是生物控制体温的能力，即使周围温度不同也能保持体温不变。

Which makes sense, because many large sharks today are mesothermic – they can keep their bodies a little warmer than the surrounding water temperature, which helps them stay active even in colder waters.

这很有道理，因为今天许多大型鲨鱼都是中温性的——它们能够保持身体的温度比周围水温略高，这帮助它们即使在冷水中也能保持活跃。