Question

What is the use of ear for the jackrabbits?

Answer 1

Answer:

They certainly hear well, but a jackrabbit's ears also function as radiators. After a sprint and on hot days, they increase the blood flow through the ears to dump heat. On cold nights, they reduce blood flow through the ears, preserving heat.

Answer 2

Answer:

They certainly hear well, but a jackrabbit's ears also function as radiators. After a sprint and on hot days, they increase the blood flow through the ears to dump heat. On cold nights, they reduce blood flow through the ears, preserving heat. Ticks love their ears.