Koalas are now officially endangered in some parts of Australia, with the country's Threatened Species Scientific Committee upgrading them from their previous vulnerable status. Nobody should be ...

Scientists in Australia are vaccinating wild koalas against chlamydia in an attempt to stop the sexually transmitted disease from wiping out the population. A team of scientists aims to catch and ...

Koalas are a nationally endangered and iconic species in Australia, yet their populations are rapidly declining due to habitat loss, fragmentation, and disease, and very little is known about the fine ...

Koalas spend most of their time in trees — but are in deadly danger when they descend to the ground, new research shows. The marsupials are an endangered species in Australia and their populations are ...

Vaccinations of wild koalas began in March this year. For now, scientists hope to inoculate 50 individuals. Martin Harvey via Getty Images Scientists in Australia have begun capturing and vaccinating ...