To expel heat more efficiently. In the case of animals such as the fennec fox, those large ears have a large amount of blood vessels close to the skin which allows heat to dissipate more quickly. In the case of animals such as elephants (particularly African elephants, who have larger ears than their Asian cousins), the ears also keep the animal cool by acting as a fan of sorts when the elephant waves them back and forth.
To let off more heat from a larger surface area.
Some dessert animals have big ears to help regulate their body temperature in hot climates. The large surface area of their ears helps to dissipate heat and keep them cool. Additionally, the blood vessels in their ears can help release excess body heat.
Jack rabbits that live in the desert, and judging by the categories, foxes, elephants, and Fennec Foxes.
blue whale
Desert rats have larger ears than others because it allows them to vent excess heat more quickly. Likewise, animals in colder climates tend to have smaller ears.
Animals with big ears include elephants, fennec foxes, and African elephants. These animals have evolved large ears to help regulate body temperature and enhance their hearing abilities, crucial for survival in their habitats.
Elephants,Donkeys And Zebras Even A Few Horses
It appears you may be referring to different types of ear shapes found in different animals. Big ears are commonly found in animals like elephants and rabbits, while tear-drop shaped ears are often seen in dogs like bloodhounds. Cat ears are unique to felines and are known for their pointed shape and ability to rotate towards sounds.
A rabbit with small ears has small ears and a rabbit with big ears has big ears.
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Desert foxes live in a warm climate, therefore it has to stay cool. It does this by having large ears as it reduces the body heat because the blood passes close to the surface of the skin through their ears. Remember a larger surface area allows more heat loss.
They have big ears to better hear the predator.