We Have Sweden and Brazil to Thank for Our Toilet Paper Rolls (02:57)

This Terrifying Worm Snatches Fish From The Ocean Floor (03:13)

How Many Pencils Can Be Made Out of a Factory Batch of Graphite? (02:50)

The Impeller is a Vital Component on this Giant Ship (03:17)

We Can't Stop Watching This Egg Separator in Action (04:08)

Do Incubating Sea Turtles Call Out to Each Other When it’s Time to Hatch? (02:28)

A Female Bear Tries to Fend off an Aggressive Male Bear (03:24)

Funicular Trains Defy Gravity to Carry Skiers to Resort (03:51)

Genius or Insane? College Campus Built in a Florida Swamp (04:00)

These Lemurs Have Found a Way to Scam Tortoises (03:42)

A Spectacled Bear’s Sense of Smell Puts a Bloodhound to Shame (01:55)

These Hedgehogs Are Ready for a Return to the Wild (03:17)

Stink Flirting Among Lemurs Can Attract or Offend (03:34)

This Forest Gecko Is a Near-Invisible Assassin (03:59)

How Wolves Use Complex Body Language to Communicate (02:44)

The Highly Intelligent New Zealand Alpine Parrot (03:07)

The Space Launch System Is the Most Powerful Rocket Ever Built (02:26)

Learning to Spacewalk Begins in a Swimming Pool (03:07)

Journey to the Dark Side of the Moon (01:55)

How "The Billion Oyster Project" Aims to Clean Up New York's Water (02:43)

Lizards: Predator & Prey (15:02)

Three-Way Battle: Blue Anole, Basilisk & Boa Constrictor (03:59)

Mesmerizing Reindeer Cyclone (00:30)

Baby Piglet Struggles to Find Her Mealtime Place (03:10)

A Vervet Monkey Befriends Some Hostile Dogs (03:28)

This Orphan Zebra and Two Dalmatians Are Close (03:54)

Manta Rays Are Smart Enough to Give These Fish Instructions (02:19)

This Alpha Male Macaque's Leadership Has Paid Dividends (02:12)

This Dog Is Trained to Sniff Out and Locate Whale Poop (05:37)

This Sustainable Offshore Cobia Fish Farm Sells Millions (03:34)

An Unexpected Friendship Between This Grumpy Cat and Bubbly Parakeet (03:22)

This Duck’s Unusual Upbringing Explains His Fear of Water (03:01)