Extras
On the plains of South Africa, an army of dung beetles recycle the dung of large mammals.
Ummat Somjee goes to Thailand to observe the cultural tradition of fighting beetles.
An intimate portrayal of three families confronting the unique challenges of Alzheimer鈥檚.
Gavin Svenson heads to the Brazilian rainforest to sample the diversity of mantises.
Nancy鈥檚 wedding plans take a surprising turn. Sister Catherine takes her First Vows.
Forensic science is put to the test after the first-ever staged multi-vehicle pileup.
Jesse Barber and Akito Kawahara study the evolutionary arms race between bats and moths.
Monarch butterflies winter in the fir forests of Michoacan, Mexico, after an epic migration.
An elusive photographer uses street art tactics to share his previously unknown work with the world.
Joyce faces a disciplinary hearing over a recent complaint which has been upheld.
Latest Episodes
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Untold Earth Season 2
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Untold Earth Season 1
Discover how The Atchafalaya Basin protects Louisiana's coast from hurricanes.
Meet Pando, an ancient tree in Utah that has grown into one of Earth's largest living wonders.
How are truffles key to the survival of the forest ecosystem at large?
What does it mean to preserve a place that is defined by it's impermanence?
Microbial warfare has been raging for thousands of years deep below the Chihuahuan Desert.
What does one of Earth's harshest environments teach us about planet survival?
At 87潞 Celcius, the Grand Prismatic Spring is a beacon of microbial life and discovery.
At 50 million years old, the origins of Devils Tower or Bears Lodge remains a mystery.
An ancient and modern mystery, what about bioluminescence inspires such obsession?
Over half a million years old, the story of Mono Lake is one of survival.