Animals like rabbits, house cats and deer are neither nocturnal nor diurnal. Instead, they're crepuscular. Jaymi Heimbuch is a writer and photographer specializing in wildlife conservation ...

Examples of nocturnal animals include aardvarks, bats and owls, according to Active Wild. The opposite of nocturnal is diurnal. Humans, who function mainly in the daylight, are diurnal.

For example, diurnal animals are busy in daylight, while nocturnal animals are active at night. Crepuscular creatures use the transitional light of sunrise and sunset.

Unlike euchromatin, the gene activation of heterochromatin is low. Between nocturnal and diurnal animals, though, the differences in nuclear architecture get bigger -- especially around the retina.

Most animals are tucked up asleep ... A short video about the significant differences in adaptations between nocturnal and diurnal creatures. The two groups take different approaches to stealth ...

They tend to sleep at night and lay low during midday. This differs from animals that are nocturnal or diurnal. Read on to learn why this is an efficient way for them to live and what local ...

WHILE investigating the nocturnal habits and colours of some of our native marine fishes, in 1885 to 1887, at Wood's Holl, Mass., in the laboratory of the U.S. Fish Commission, of which I had ...

Scientists offer new insights into why many animals sleep at night and ... examined the day/night patterns of monkeys (diurnal) and mice (nocturnal) and found that although both process light ...