Environment

How City Living Changes the Biological Clocks of Birds

Not only do they get less sleep, they also have more disrupted circadian rhythms.
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Apparently human beings are not the only creatures who can end up getting less sleep when exposed to the bright lights and excitement of the big city.

According to a new study comparing urban birds to their country cousins, birds from the city "started their activity earlier and had faster but less robust circadian oscillation of locomotor activity than forest conspecifics."