the ears have a large surface area which allows more heat to escape, thus keeping them cool
The large ears of the fennec act as radiators that help rid the fox of excess heat.
Fennic Fox
large ears to cool blood
A fennec fox with small ears would overheat in its hot Saharan desert habitat. The fox's large ears help the fox to lose heat and stay cool.
they have evolved large ears to keep cool in the hot sun, as a bonus to finding a shaded cool desert breeze, there ears are left out to capture any pray or predators near by.
Jack rabbits that live in the desert, and judging by the categories, foxes, elephants, and Fennec Foxes.
Foxes didn't choose to have "large" ears and they don't. You may have seen the Fennec fox, they do have quite big ears. Why? They are desert foxes and must hear their prey. The desert is pretty calm and quiet, so the Fennec must hear for any prey possible. But no, not all foxes have large ears.
their ears keep them cool
They have smaller ears to conserve heat. Foxes from warmer areas have larger ears to help dissipate heat.
their ears keep them cool
All foxes pant and some raise their ears in-order to cool-down.
The difference between the fennec fox and the arctic fox it that the fennec fox lives in hot conditions, and the arctic fox live in colder conditions. Also, they don't look like each other, the fennec fox has large ears so it can loose heat fast from it giant span, and it is has a much smaller skeleton to the arctic fox. Also, the fennec fox is an gingery colour. The arctic fox has small ears so it doesn't loose as much heat so it can stay warm in it harsh environment, it has white fur, and a much bigger skeleton to the fennec fox.
Foxes ears are at the top of their head!
yes elephants have large ears to cool down.