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 & ...

Luz Marina Rojas, Raymond McNeil, Thérése Cabana and Pierre Lachapelle We compared the diurnal and nocturnal visual function in two tactile foraging waterbird species, the red subspecies of the ...

Scientists offer new insights into why many animals sleep at night and are active during the day, while others do the reverse. Research from University of California, Irvine scientists and their ...

Crepuscular creatures abound in Southwest Colorado. They live in the high mountains, sage plains, ponderosa forests, desert canyons and everywhere in between. They are all shapes and sizes. Some are ...

Many plants show obvious floral adaptations to attract and facilitate pollination by nocturnal visitors. Many of these flowers also receive frequent diurnal visits, yet little is known about how these ...

Light-sensitive cells in the retina come in two main types: rods and cones. Rods are used for vision at low light and cones for color and bright light. A study in the September issue of the Journal of ...

It's no secret that jet lag and night-shift work can wreak havoc on the way our body's internal clock syncs up our daily wake-sleep cycle, known as circadian rhythm, but now researchers say they are a ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Squirrels are plentiful when the sun’s out, while rats are a more ...