The genetic switch effectively reduces the impact of the retrovirus, strengthening the immune system of the beloved but endangered marsupial, said Keith Chappell, a virologist at the University of ...

Deep in the night the women carry the cage through the trees, setting it below a gray-skinned eucalyptus. Standing back, they spring the lid of the cage, and the koala dashes up the trunk and ...

Koalas , often referred to as 'koala bears,' are not actually bears ... koalas are marsupials, meaning they carry and nurse their young in a pouch, just like kangaroos and wombats.