The barn owl’s brilliant white underbelly is the key to its success as a nocturnal hunter, allowing the bird to camouflage itself against the moon, according to new research.

Many nocturnal animals, though not nocturnal birds, have a good sense of smell and often communicate with scent marking. That sense of smell comes from the Jacobson’s organ located in the roofs ...

Many nocturnal eyes are equipped with a feature designed to amplify the amount of light that reaches the retina. Called a tapetum, this mirror-like membrane reflects light that has already passed ...

Many nocturnal eyes are equipped with a feature designed to amplify the amount of light that reaches the retina. Called a tapetum, this mirror-like membrane reflects light that has already passed ...