And she found that, on average, bird bones are the densest, with bat bones coming in a close second.

她发现，鸟类的骨胳平均是最密集的，其次是蝙蝠。

youdao

And she found that, on average, bird bones are the densest, with bat bones coming in a close second.

她发现，鸟类的骨胳平均是最密集的，其次是蝙蝠。

youdao