Photo: Climbing as Easy as Walking for Small Primates

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Small primates, such as the slender loris seen above, are just as efficient at climbing as they are at walking, a new study reveals.

Using a rope treadmill inside a Plexiglass chamber, scientists put several tiny primate species through their paces and found that the amount of oxygen they use to climb remains consistent with their body sizes.

Photograph courtesy David Haring/Duke University Lemur Center

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