Contact: Cody Mooneyhan
Society of Vertebrate Paleontology
Caption: Figure 3 -- A bat and dolphin embryo illustrate the process of forelimb enlargement and hind limb reduction, respectively, in the orders Chiroptera and Cetacea. The fossil record shows that Eocene whales (Ambulocetus natans) still had hind limbs, but the earliest known bats looked much like modern Carollia perspicilata.
Credit: T. Hieronymus, K. Sears
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