The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology

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The Anatomical Record ranks 2nd in the Anatomy Morphology category in total
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Eye size determined by maximum running speed in mammals
Maximum running speed is the most important variable influencing mammalian eye size other than body size, according to new research from The University of Texas at Austin. Species with larger eyes usually have higher visual acuity, says Chris Kirk, associate professor in the Department of Anthropology. But what are the ecological factors that cause some mammals to develop larger eyes than others? "If you can think of mammals that are fast like a cheetah or horse, you can almost guarantee they've got really big eyes," says Kirk. "This gives them better vision to avoid colliding with obstacles in their environment when they're moving very quickly."
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Fatty ears help baleen whales hear
Cetaceans possess highly derived auditory systems adapted for underwater hearing. Odontoceti (toothed whales) are thought to receive sound through specialized fat bodies that contact the tympanoperiotic complex, the bones housing the middle and inner ears. However, sound reception pathways remain unknown in Mysticeti (baleen whales), which have very different cranial anatomies compared to odontocetes.
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Click Here for One of the Most Popular Issues of The Anatomical Record ever: Unearthing the Anatomy of Dinosaurs: New Insights into Their Functional Morphology and Paleobiology