Nocturnal. Nocturnal behavior means the animal is active at night, which some people believe is the deer’s sleep pattern. Diurnal. Diurnal sleep and waking patterns mean the creature is most ...

Eclipses can fool certain animals into thinking that it’s the evening, causing them to to revert to their nocturnal or crepuscular behaviors. For example, in 1932, researchers observed crickets ...

Their research is not the first to detect how animals are adapting their behavior to rising global temperatures. “With increasing global warming, these shifts from diurnal to nocturnal activity ...

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