There's a bony support inside bird tongues called the hyoid.

在鸟的舌头里面有一种叫做舌骨的骨质支撑。

The hyoid is a structure that supports the tongue and larynx.

舌骨是支撑舌头和喉头的结构。

Yeah. None of the hyoid bones were fractured.

是的 舌骨都没有断裂。

And all of the cats that have a completely ossified hyoid can purr, but don’t roar.

所有舌骨完全骨化的猫都可以发出咕噜声， 但不会吼叫。

If the hyoid bone in the throat was broken, they could assume she was throttled.

如果喉咙里的舌骨骨折了， 他们就可以假设她被勒死了。

In most species of cat, including the domestic cat, the hyoid bone is very … bony.

在大多数猫科动物中， 包括家猫，舌骨非常… … 多骨。

For mammals, the hyoid is part of what gives babies the ability to suckle milk.

对于哺乳动物来说，舌骨是婴儿吸奶能力的一部分。

Snow leopards don’t have a fully hardened hyoid — they have the more flexible kind that lions do.

雪豹没有完全硬化的舌骨——它们有比狮子更灵活的舌骨。

So roaring isn’t entirely about the hyoid bone.

所以咆哮并不完全与舌骨有关。

Reptiles just have a simple rod for their hyoid, which gives them a wide but not-very-muscularized throat.

爬行动物的舌骨只有一根简单的杆，这使它们的喉咙很宽， 但肌肉不是很发达。