Which Will Favor Nonshivering Thermoregulation at Birth, a Reindeer or a Mouse

Question

Which will favor nonshivering thermoregulation at birth, a reindeer or a mouse?
A) The reindeer, because it is a larger mammal.
B) Both mice and reindeer use nonshivering thermogenesis at birth.
C) The mouse, because it is a small mammal.
D) The mouse, because it has to avoid predators.

Accepted Answer

Both mice and reindeer use nonshivering thermogenesis at birth, as they both rely on brown adipose tissue to generate heat without shivering.