The bones are from the animal's legs and feet.

这些骨头是巨型企鹅的腿和脚。

It affected the young animal's front legs, which became hyperextended.

这种疾病影响了幼崽的前肢，使前肢腕关节过度伸展。

Heidi immediately saw that Peter was nearly pulling off the animal's leg.

海蒂一眼就看出彼得差点把动物的腿扯下来。

A " thigh" (thigh) is the upper part of a person or an animal's leg.

。 “大腿” （大腿）是人或动物腿的上半部分。