SYDNEY, Australia – Koalas are on track to become extinct in New South Wales before 2050, according to a report from the Australian state’s parliament. A committee released the report Tuesday after a ...

Cuddly koala bears are adored by people all over the world, even by those who have never seen one in real life. But these animals are not actually bears at all and are facing serious challenges in ...

Study reveals koala have extinct from their ancient relatives, including marsupial lions and giant wombats. Ancient proteins ...

Koalas were officially declared endangered Friday in eastern Australia. This comes as the marsupials continue to fall prey to chlamydia and lose their habitats to land clearing and climate change.

A regulator has approved a world-first vaccine to protect koalas from chlamydia infections, which are causing infertility and death in the iconic native species that is listed as endangered in parts ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...