Like this fennec fox, nocturnal behavior makes sense for animals living in blistering desert heat—cooler night temperatures stop them from overheating when exerting themselves. Photograph by ...

Nocturnal animals tend to have proportionally bigger eyes than humans do. They also tend to have pupils that open more widely in low light. So, at the outset, nocturnal eyes gather more light than ...

Howler monkeys demonstrate why they are some of the noisiest animals on the planet. After viewing, students could name all the ways in which the nocturnal animals shown in the clip are adapted for ...

This is a rarity in primate research, and illustrates just how much remains to be known about these fascinating animals ... These threatened nocturnal lemurs live in the dry forests of western ...

Academy Award nominees Amy Adams and Jake Gyllenhaal star as a divorced couple discovering dark truths about each other and themselves in Nocturnal Animals.

Nocturnal animals tend to have proportionally bigger eyes than humans do. They also tend to have pupils that open more widely in low light. So, at the outset, nocturnal eyes gather more light than ...

Howler monkeys demonstrate why they are some of the noisiest animals on the planet. After viewing, students could name all the ways in which the nocturnal animals shown in the clip are adapted for ...