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Coyotes are among the more than 60 mammal species that have shifted to a more nocturnal schedule when living around people. (Steve Winter/NGC/Getty)
Humans drive animals into the night
Activities such as hunting and hiking are driving mammals to become more active at night, when they’re less likely to run into people. A review of studies on 62 mammal species found that most mammals become on average 20% more active at night in response to higher levels of human disturbance. The consequences of this shift on the animals are still unclear, but scientists suspect it could threaten the survival of some populations.
(Getty)
