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 ...

The opposite of nocturnal is diurnal. Humans, who function mainly in the daylight, are diurnal. Other diurnal animals include lions, killer whales and polar bears, according to Animalia.

Bubbles tries to become nocturnal and stay up all night with Zee, but soon falls asleep. Nocturnal species and Diurnal species -- The reef becomes a very different place at night because all kinds ...

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 ...

However, both diurnal and nocturnal creatures have pupils that dilate or constrict to control light. And both have lenses that focus the image and nerves that communicate that image back to the brain.

The study, published in the Journal of Animal Ecology and led by Dr Cedric van den Berg, analysed the colouration and pattern morphology of 45 diurnal and nocturnal east coast species. “ [Diurnal] sea ...

Zee tells Splash, Bubbles, Dunk & Ripple that she is nocturnal, which means she stays awake all night and sleeps during the day. Splash and friends are diurnal, which means they sleep all night ...