Explore Australia: First 4 Billion Years
Australia's "Magnetic" Termites
Where Did We Come From?
Deadly Crocodiles Down Under
How Did Life Begin?
Harvard's Andrew Knoll discusses the deeply mysterious jump long ago from non-living to living.
Life's Rocky Start
What is the secret link between rocks and minerals, and every living thing on Earth?
Revealing the Origins of Life
Evolution Down Under
How did Australia come to be marsupial heaven?
Making North America
Host Kirk Johnson explores how the continent was shaped—and how it shaped us.
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?