Explore Australia: First 4 Billion Years
Australia's "Magnetic" Termites
Where Did We Come From?
Deadly Crocodiles Down Under
Life's Rocky Start
What is the secret link between rocks and minerals, and every living thing on Earth?
Revealing the Origins of Life
Making North America
Host Kirk Johnson explores how the continent was shaped—and how it shaped us.
Evolution Down Under
How did Australia come to be marsupial heaven?
Dual Epidemics Threaten Koalas
Gigantism & Dwarfism on Islands
Life's Little Essential
Everybody knows that water is necessary for life, at least as we know it. But just why exactly?
Australia: Strange Creatures
After a massive extinction, diverse marsupials came to dominate this isolated continent.
Some 250 million years ago, some of the largest, most dangerous reptiles ruled this land.
Australia: Life Explodes
Fossils reveal how life's explosion in the ocean was recreated on dry land.
Australia's ancient landscape holds clues to Earth's early history and the beginning of life.
The Extinction Enigma
Experts Debate Dinosaur Stampede
How Did Life Begin?
Harvard's Andrew Knoll discusses the deeply mysterious jump long ago from non-living to living.