Eli5: why do humans babies need to have their umbilical cords clamped and cut but other animals do not?

Question

Human umbilical cords are clamped and cut to prevent bleeding. Yet other animals either naturally tear or chew the cord without excess bleeding.

In: 39

Answer 1

The umbilical cord will naturally seal off within about an hour of the birth.

So we don’t need to we just do it to get it out of the way.