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All animals have an internal clock called a circadian clock, which is regulated by cues from their environment — but animals in zoos can be exposed to very different cues from animals in the wild.

Giant pandas living in captivity could be suffering from “jet lag” if their body clocks don’t match their environments, scientists say. This could have a significant impact on the well-being and ...

(CNN) — Giant pandas living in captivity could be suffering from “jet lag” if their body clocks don’t match their environments, scientists say. (CNN) — Giant pandas living in captivity could be ...