Season 5
Whack! Jab! Crack! It's a Blackback Land Crab Smackdown
These Caribbean crabs will tear each other limb from limb to get the best burrow.
Whack! Jab! Crack! It's a Blackback Land Crab Smackdown
Want a Whole New Body? Ask This Flatworm How
Planarians are tiny googly-eyed flatworms that can regrow their entire body.
Want a Whole New Body? Ask This Flatworm How
A Sand Dollar's Breakfast is Totally Metal
Sand dollars look way different in their lives beneath the waves.
A Sand Dollar's Breakfast is Totally Metal
The House Centipede is Fast, Furious, and Just So Extra
House centipedes are masterful predators with a knack for fancy footwork.
The House Centipede is Fast, Furious, and Just So Extra
How Kittens Go From Clueless to Cute
Born deaf and blind, kittens need constant warmth and milk to survive.
How Kittens Go From Clueless to Cute
This Adorable Sea Slug is a Sneaky Little Thief
Nudibranchs may look cute and defenseless ... but watch out. These sea slugs are thieves.
This Adorable Sea Slug is a Sneaky Little Thief
Watch This Bee Build Her Bee-jeweled Nest
A female blue orchard bee is a multitasking master. Her beautiful nests help food grow.
Watch This Bee Build Her Bee-jeweled Nest
How Elephants Listen ... With Their Feet
African elephants may have huge ears, but they also listen with their feet.
How Elephants Listen ... With Their Feet
What Do Earwigs Do With Those Pincers Anyway?
Earwigs have some imposing pincers on their rear, and they're not afraid to use them.
What Do Earwigs Do With Those Pincers Anyway?
You'd Never Guess What an Acorn Woodpecker Eats
The lengths they have to go to to stock up for the winter *will* surprise you.
You'd Never Guess What an Acorn Woodpecker Eats
Watch These Cunning Snails Stab and Swallow Fish Whole
Cone Snails have an arsenal of tools and weapons under their pretty shells.
Watch These Cunning Snails Stab and Swallow Fish Whole
You've Heard of a Murder of Crows. How About a Crow Funeral?
Crow funerals aren't the solemn events that we hold for our dead. What's really going on?
You've Heard of a Murder of Crows. How About a Crow Funeral?
To reproduce, vibrant tumbleweeds need to turn into rolling brown skeletons.
Why Do Tumbleweeds Tumble?
Upside-Down Catfish Doesn't Care What You Think
This catfish looks confused, but swimming belly-up helps it camouflage and breathe better.
Upside-Down Catfish Doesn't Care What You Think
Take Two Leeches and Call Me in the Morning
Once used for questionable treatments, leeches now help doctors to reattach body parts.
Take Two Leeches and Call Me in the Morning
How Ticks Dig In With a Mouth Full of Hooks
A tick uses a mouth of hooks to cling to you. But there *is* a way to pull it out.
How Ticks Dig In With a Mouth Full of Hooks
So... Sometimes Fireflies Eat Other Fireflies
Most firefly flashes are pure romance. One copycat uses them to lure others to their doom.
So... Sometimes Fireflies Eat Other Fireflies
For Pacific Mole Crabs It's Dig or Die
Some very special physics help Pacific mole crabs dig with astonishing speed.
For Pacific Mole Crabs It's Dig or Die
Why the Male Black Widow is a Real Home Wrecker
The female black widow has a bad reputation, but her male counterpart is a total jerk.