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

Courtesy of Stephen Pincock" />Prepping a koala for a procedure Credit: Courtesy of Stephen Pincock Peering through a fringe of eucalyptus leaves, Don the koala greets visitors with an air of ...

The zoo grows more than 30 varieties of eucalyptus to feed the koalas who eat about 1.5 pounds of the leaves a day. “We wanted to make sure that we had enough eucalyptus for all of the koalas we ...

These tree huggers, living primarily on eucalyptus leaves, also have a diet that’s toxic to other mammals. Koalas rely on a specialised digestive system that helps them break down the toxic (and ...

Koalas, often perceived as the endearing poster children of Australian wildlife, are as unique in their dietary habits as in ...