Their nasal glands have the function of individual recognition.

它们的鼻腺有个体识别的功能。

Metriorhynchids and other extinct marine reptiles had especially large nasal salt glands, which we know because paleontologists have been able to study these structures in a few incredibly rare internal casts of their snouts.

Metriorhynchids 和其他已灭绝的海洋爬行动物有特别大的鼻盐腺，我们知道这是因为古生物学家已经能够在一些极其罕见的鼻子内部模型中研究这些结构。