Question

Which mammal rolls itself into ball at the time of danger?

Answer 1

Hedgehog rolls itself into ball at the time of danger.
Only South American Three Banded Armadilo rolls itself into a perfect ball shape.

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Answer 2

Hedgehogs is a mammal that rolls its body at the time of danger. After shooting his prickly quills up and makes them interlock with each other and in this way they give themselves a sharp shield of armor against predators.and at this point of time it curls his head and feet down into its body and rolls himself into a ball to protect his soft ,and delicate inside body .After this action it completely looks like a ball . The predators think that the balls are not appealing to be eaten and they quit and even if they try eating up ,the ball is too hard to be pressed.