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Why do mule deer have large ears?

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male white-tailed deer — deer Male white-tailed deer (*Odocoileus virginianus*).

Mule deer (Odocoileus hemionus) derive their common name from their large, mule-like ears. These prominent ears, in combination with their large, keen eyes, serve a critical survival function by allowing the deer to detect and locate distant predators in their environment.12

By providing an enhanced sense of hearing, these ears help the mule deer remain vigilant against threats such as wolves and coyotes, which is essential for their survival in the rugged landscapes of western North America.1