Summary: Yawning is a universal behavior observed in many species, but why do we tend to yawn when someone else does? While the idea that yawning increases brain oxygenation remains unproven, some ...

SWANSEA, United Kingdom — In the lush rainforests of Central and South America, sloths have perfected the art of energy conservation. These slow-moving mammals have evolved to exist on an extremely ...

Central and South America’s sloth populations may face a dire existential threat from climate change by the end of the century. New research published on September 27 in the journal PeerJ ...

Yawning is a universal phenomenon, observed in many vertebrate species, from wolves to parrots, and, of course, humans, from a very early age.But why do we tend to yawn when we see someone else ...

Sloths are among the most beloved of jungle animals. The famously sluggish and furry tree-dwellers are found throughout Central and South America, giving off the vibe of relaxed lifestyle.

Central and South America’s sloth populations may face a dire existential threat from climate change by the end of the century. New research published on September 27 in the journal PeerJ indicates ...

Scientists have investigated why some underwater species yawn – and the reason is not what you might think. Photographing a yawning frogfish is a bucket-list photo for most underwater photographers.

Sloths are among the most beloved of jungle animals. The famously sluggish and furry tree-dwellers are found throughout Central and South America, giving off the vibe of relaxed lifestyle. Yet a ...

One such species is sloths, which have an unusually low and variable body temperature (Tb). They utilize postural adjustments in order to exploit favourable microclimates within the canopy and ...