This Jamaican fruit bat, Artibeus jamaicensis, has a short jaw, like many noctilionoid fruit-eating bats. Credit: Alexa Sadier Bats in the noctilionoid group, like Darwin’s finches, have evolved an impressive variety of jaw and tooth adaptations to suit their diverse diets. From fruit to fish, these bats have rapidly changed over millions of years, showcasing how evolution shapes form and function.