Physical anthropologists study the evolution of the human species.

生物人类学家研究人类物种的演化。

By combining these with some microscopic skeletal clues, physical anthropologists can estimate an approximate age of death.

通过把这些线索与微观的 骨骼线索相结合，人体人类学家可以估计出 一个大约的死亡年龄。

We knew about this data that was collected in a very ambitious initiative by Franz Boas, who's a famous physical anthropologist, on the biological, like, height of about 15,000 Native Americans across North America.

我们知道这些数据是由著名体质人类学家弗朗兹·博阿斯 (Franz Boas) 在一项雄心勃勃的倡议中收集的，涉及北美约 15,000 名美洲原住民的生物学身高。