A 2009 study examining the sleep/wake cycles of S. invicta found that the worker ants averaged a mammoth 253 sleep episodes ...

The koala is clinging to a chain-link fence, its fur snagged in horizontal strands of barbed wire. Towering eucalyptus trees, as pale as ghosts, rise on the far side of the fence. “He was ...

AUSTRALIA'S adorable koalas may charm us with their cuddly appearance, but the truth is these marsupials prefer their ...

Sleepyheads of the Animal Kingdom: Koalas sleep for about 18-22 hours a day! Their diet of eucalyptus leaves provides little energy, so they conserve it by resting most of the time. Specialized ...

Editor's note: This is part of a series of videos offering an up-close perspective on the animal kingdom. A special 360-degree video camera system was set up in zoos and other facilities to show ...

The Conversation reported that koalas' primary threat is habitat loss, since the creatures' eucalyptus tree forests are being destroyed by pollution, farming, urban development, and deforestation.

I believe the koala’s adorable looks go perfectly with images of friendship and peace. The animals sleep 20 hours a day on treetops, munching on Eucalyptus leaves. Joeys grow up in the safety of ...