Discover the fascinating world of the Common Big-eared Brown Bat (Idionycteris phyllotis), a medium-sized nocturnal creature known for its remarkable echolocation abilities and large, distinctive ears. Found across western North America, these bats play a crucial role in controlling insect populations while facing threats from habitat loss and pesticide use. Learn about their unique behaviors, habitat preferences, and the ongoing conservation efforts aimed at protecting this essential species.