You may notice that few cold-blooded animals are active in the winter, and the farther north you ... If they didn’t enter torpor at night they would die, since their bodies would lose too much heat ...

The presence of the tapetum can be observed at night when a pair of glowing eyes reflects back a flashlight or some other light source. (Interestingly, different animals have different color ...

"Their eyes are the animal world's equivalent of night-vision goggles." Quentin Martinez/Getty Images The tarsier is a genius in the dark thanks to its enormous eyes Geoff is the science lead on a ...

This is a rarity in primate research, and illustrates just how much remains to be known about these fascinating animals ... during the day and forage at night for insects, fruit, flowers, and ...

Night on Earth reveals the startling activity of the natural world hiding behind the dark curtain of night. From the producer of Plant Earth II, this six-part Netflix series follows nocturnal animals ...