Extras
What is it Like to Live in Antarctica?
Antarctica's cold, isolated and often dangerous. Yet somehow, people manage to live there.
What is it Like to Live in Antarctica?
Why is this Antarctic Glacier “Bleeding?”
Did you know that Antarctica has a glacier that bleeds red?
Why is this Antarctic Glacier “Bleeding?”
How Antarctica’s Cutest Baby Seals Grow Up
Baby Weddell seals might actually be cutest animals in all of Antarctica.
How Antarctica’s Cutest Baby Seals Grow Up
Antarctica: Journey to the Bottom of the Earth
Getting to the most remote natural laboratory on Earth is no easy feat.
Antarctica: Journey to the Bottom of the Earth
Why do we sleep? And what does sleep have to do with memory, trauma, and our emotions?
Mysteries of Sleep Preview
Goddess, demon, house pet? What does science say about the human relationship with cats?
Cat Tales Preview
Can Bones Reveal how Dogs Evolved from Wolves?
Learn more about the evolution of our furry companions.
Can Bones Reveal how Dogs Evolved from Wolves?
Follow the epic journey of dog domestication and see what science says about dogs’ love.
Dog Tales Preview
What did the East Coast Look Like 3 Million Years Ago?
Scientists dig up ancient clams from the ocean 90 miles from the nearest beach.
What did the East Coast Look Like 3 Million Years Ago?
This Alaska Community is Losing Sea Ice to Climate Change
See how one small town’s survival is threatened by climate change.
This Alaska Community is Losing Sea Ice to Climate Change
How Climate Has Shifted Over Millions of Years
Lake mud from the Russian Arctic tells us that Earth's climate has oscillated in the past.
How Climate Has Shifted Over Millions of Years
What if Carbon Left Your Tailpipe as Solid Chunks?
Together, all the cars on Earth would leave quite the pile of carbon behind—every day.
What if Carbon Left Your Tailpipe as Solid Chunks?
Plant Fossils Hint at Arctic's Swampy Past
Learn more about a lush forest that once dominated the Arctic.
Plant Fossils Hint at Arctic's Swampy Past
A Bird's-Eye View of Carbon Emissions
What if carbon dioxide pollution were solid carbon chunks?
A Bird's-Eye View of Carbon Emissions
Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.
Polar Extremes Preview
How Earth’s Climate Changed Over the Past 500 Million Years
Learn more about our planet’s Hothouse and Icehouse climates.
How Earth’s Climate Changed Over the Past 500 Million Years
How Carbon Dioxide Warms Planet Earth
Carbon dioxide acts like a heat-trapping blanket, warming our planet.
How Carbon Dioxide Warms Planet Earth
Fifty Million Years Ago, the Arctic Was a Warm Swamp
Drop yourself into a modern-day swamp, and that's what the ancient Arctic looked like.
Fifty Million Years Ago, the Arctic Was a Warm Swamp
What’s Causing Greenland’s Biggest Glacier to Melt?
Warming ocean water is eating away at Greenland's glaciers from below.
What’s Causing Greenland’s Biggest Glacier to Melt?
Why Trees Are Living Climate Records
Trees have an environmental record etched into their very wood.