"Our discovery shows that there were many birds, and a variety of them, near the South Pole about 125 million years ago."

Why did more animal species from Asia make the leap to Australia than vice versa? A new study may have some answers.

The immune system of black swans leaves them particularly vulnerable to avian flu. When exposed, the virus could kill them within three days.

New research sheds light on a mysterious AIDS-like virus that affects koala populations differently depending on where they live.

The only source of a promising cancer-fighting compound is a single kind of tree in Australia. Now, scientists have made it in the lab.

A new study highlights another threat facing endangered koalas, but could also lead to ways to treat populations and reduce the risk of extinction.

Threatened birds have disappeared from almost 70% of Australia—and 10 birds have become locally extinct from 99% of their historical habitat.

Iron in smoke and ash from wildfires can "fertilize" the oceans, providing nutrients for algae blooms that then may suck up carbon, research indicates.

Mother koalas are transferring a deadly virus that causes immune depletion and cancer to their babies, a new study shows.

"The new pterosaur, which we named Thapunngaka shawi... was essentially just a skull with a long neck, bolted on a pair of long wings."