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Giant River Otters Defeat Large Black Caiman
1:54
Size and strength are no match for social intelligence.
Orphaned Baby Elephant Struggles to Survive
3:34
A baby elephant named Naledi has lost her mother to illness.
How Not to Feed a Baby Elephant
2:46
It's not always easy getting a baby to eat.
What Happened to Naledi?
1:43
The future was uncertain for Naledi, an elephant orphaned an early age.
Baby Caterpillar Hatches from Tiny Butterfly Egg
2:35
Watch a newborn caterpillar emerge from an egg the size of a pinhead.
Filming Beautiful Butterfly Footage
12:37
Learn how the Sex, Lies and Butterflies filmmakers captured their incredible footage.
Go Butterfly Watching with a Pro
2:59
You don't have to go far to see butterflies; you just need to look .
How to Save a Butterfly
4:25
A species of endangered butterfly is on the road to recovery from near extinction.
A Butterfly's Proboscis
3:54
See how scientists are using the latest technology to discover how butterflies eat.
Butterfly Mimicry
5:33
Susan Finkbeiner conducts an experiment to determine if mimicry actually works.
How Sudan Became the Last Male Northern White Rhino
2:35
Learn the backstory of the world's most famous rhino.
Caring for the World's Most Famous Rhino
2:18
Meet Sudan, the last male Northern White Rhino.
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