What's the use of a rabbit's long ears?

The long ears of rabbits have the following functions:

1. Locating by hearing: The rabbit's ears are very long, which can help it hear weak sounds and avoid predators.

2, heat dissipation: there are more blood vessels in the rabbit's ear, which can help it dissipate heat in the body in summer.

3. keep warm: rabbits have fluff on their ears. In winter, it will stick its ear to sadness to keep itself warm.

The color of rabbit ears can also reflect its health. At room temperature, the color of normal rabbit ears is pink. If the color is too red and the ears are too hot, it may be a fever. If your ears are too white, you may be anemic. If your ears are blue and purple and you feel cold, you are mostly seriously ill. But if you want to determine whether the rabbit has a fever, it is not accurate to touch it by hand, so you need to measure the anus with a thermometer, because the temperature and color of the rabbit's ear are also related to the temperature.