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 ...

When the sun disappears, and the world slowly becomes quiet, another world quietly wakes up. While humans switch off lights and head toward sleep, many animals begin the most important part of their ...

In the week following the April 8 total solar eclipse, researchers with the Project for Understanding Several Species observed ritualistic behavior among nocturnal animals at the Zoo Zoo Zoo.

Human disturbance is rapidly changing the nature of the nocturnal world. Intensive farming, suburban spread, artificially lit cities, and continuously busy road systems mean daytime species are ...

Internal biological clocks, also known as circadian rhythms, are universally shared by living organisms, according to the University of Illinois Urbana-Champaign’s Agricultural, Consumer & ...

When news breaks, you need to understand what actually matters — and what to do about it. At Vox, our mission to help you make sense of the world has never been more vital. But we can’t do it on our ...