There are nocturnal animals (active at night) and diurnal animals (active during the day). But what about those animals that are most active during dawn or dusk? The animals that are busy during these ...

Like clockwork, those cute little cottontail rabbits show up here on Mt. Hoo regularly when the bright flame of sunlight has just about gone out for the day. More prey moving about in these twilight ...

When you hear the word reindeer, you probably think of magical creatures that pull Santa’s flying sleigh one night a year.

The crepuscular habits of bats reduce competition with daytime predators. She felt caught in a crepuscular phase of her life, no longer one thing, not yet another. The city was washed in crepuscular ...