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The image above is a spectogram of an evening bat call from the spring 2023 Evanston Campus Bat Walk. Since bat calls emit at a frequency too high for humans to hear, bats are identified according to ...

A fringe-lipped bat, Trachops cirrhosus, approaches a Fitzinger's robber frog, Craugastor fitzingeri, in Panama. This species of bat eavesdrops on the mating calls that male frogs produce to attract ...

Fringe-lipped bats are a carnivorous species that range from Panama to Brazil. According to Bat Conservation International, they are named for the wart-like bumps that dot its lips and muzzle, which ...