Their large ears help them to keep cool.
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His ears.
A jackrabbit will spend the hottest part of the day resting in a bed scratched out at the base of a shrub or in a clump of tall grass where the shade will protect it from the heat . The jackrabbit's large ears also help the hare keep cool . The blood vessels in the ears expand to allow the blood to cool before re-entering the body .
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it's ears
Their ears have large blood vessels in them, which draws the warm blood to their thinly furred ears, thus cooling them off.
All rabbits are very hot in the summer with their coat so whenever they go out of their burrow, they find some shade. Also, they go into there burrows if its to hot even in the shade. Water trickles onto the dirt and sinks in there. That's why its cool down there!
The fluid that keeps the body cool is sweat.
it keeps cool in the day maybe.
they ears are used to listen for predators but also to act as a radiator to keep cool with its ears
The word "jackrabbit" is commonly used to describe certain hares, and each species has its own scientific name. Here are some examples of hares commonly given the name "jackrabbit," and their scientific names:Antelope jackrabbit, Lepus alleniBlack-tailed jackrabbit, Lepus californicusWhite-sided jackrabbit, Lepus callotisTehuantepec jackrabbit, Lepus flavigularisBlack jackrabbit, Lepus insularisWhite-tailed jackrabbit, Lepus townsendii
Jackrabbit
There are many species of jackrabbit. Jackrabbits are actually hares. Each species has its own scientific name. For example:The Black Tailed Jackrabbit is Lepus californicusThe Antelope Jackrabbit is Lepus alleniThe White Tailed Jackrabbit is Lepus townsendii