A Restless Planet

From the ashes of Australia’s devastating bushfires, wildlife survivors begin their long journeys to recovery. Australia’s fauna have evolved to coexist with bushfire, but these Black Summer fires are unprecedented in their scale, speed and intensity. Many native animals are unable to escape, or endure, without human help. We follow iconic species like koalas, kangaroos, wombats, and an endangered parrot through their rescue, rehabilitation and eventual release. Remarkable tales of compassion and dedication are revealed along the way – from an orphan wombat growing too attached to her carer, to audacious helicopter airdrops to feed remote rock wallabies. When the fires finally burn out, Australia looks to the science, innovation and Indigenous knowledge that will be needed to safeguard fragile wildlife in an even hotter future.

Catalyst is Australia's premier science investigation series. Each week the team brings you stories from Australia and around the world, meeting scientists at the forefront of discovery.

Presented by Richard Roxburgh this four-part series is drug science without the politics. It unpacks the history, harms and surprising benefits of our most common recreational drugs.

Lurking in the oceans, to the forest, swamps and deserts, are a litany of lethal little killers. Here, explore what defines a poison from a toxin and which venoms pack the greatest punch.