When the tiny salamander limb is amputated, blood vessels in the remaining stump contract quickly, so bleeding is limited, and a layer of skin cells rapidly covers the surface of the amputation site.

• 当蝾螈细小的脚被切断时，截肢处的血管会立刻收缩，以减少失血，然后会有一层皮肤细胞很快覆盖断肢的伤口。