Season 4
Roly Polies Came From the Sea to Conquer the Earth
Whatever you call them, there’s something less creepy about these critters than others.
Roly Polies Came From the Sea to Conquer the Earth
Why Reindeer and Their Cousins are Total Boneheads
What if you had to grow 20 pounds of bone on your forehead each year just to find a mate?
Why Reindeer and Their Cousins are Total Boneheads
Praying Mantis Love is Waaay Weirder Than You Think
When it comes to hooking up, male mantises have good reason to fear commitment.
Praying Mantis Love is Waaay Weirder Than You Think
It’s a Goopy Mess When Pines and Beetles Duke it Out
Pine beetles can fell a mighty ponderosa pine, but the forest fights back. Who will win?
It’s a Goopy Mess When Pines and Beetles Duke it Out
These Whispering, Walking Bats Are Onto Something
Bat echolocation is loud, so some bats have hit on a sneakier, scrappier way to hunt.
These Whispering, Walking Bats Are Onto Something
There's Something Very Fishy About These Trees...
When salmon die, a new journey begins – with maggots.
There's Something Very Fishy About These Trees...
A Baby Dragonfly's Mouth Will Give You Nightmares
Baby dragonflies grow up in a larva-eat-larva world. Up close, they look like monsters.
A Baby Dragonfly's Mouth Will Give You Nightmares
Daddy Longlegs Risk Life and Especially Limb to Survive
When predators attack, daddy longlegs deliberately release their limbs to escape.
Daddy Longlegs Risk Life and Especially Limb to Survive
This Is Why Water Striders Make Terrible Lifeguards
They may look serene as they glide across the surface of a stream, but don't be fooled.
This Is Why Water Striders Make Terrible Lifeguards
These Fish Are All About Sex on the Beach
During the highest tides California grunion stampede out of the ocean to mate on the beach
These Fish Are All About Sex on the Beach
Behind the Scenes With Deep Look: The Diva Decorator Crabs
How long does it take to film a decorator crab putting on its seaweed hat?
Behind the Scenes With Deep Look: The Diva Decorator Crabs
How Do Pelicans Survive Their Death-Defying Dives?
Brown pelicans hit the water at breakneck speed when they catch fish.
How Do Pelicans Survive Their Death-Defying Dives?
Identical Snowflakes? Scientist Ruins Winter For Everyone
We've all heard that each and every snowflake is unique.
Identical Snowflakes? Scientist Ruins Winter For Everyone
These Fighting Fruit Flies Are Superheroes of Brain Science
Thanks to The Great Courses Plus for sponsoring this episode of Deep Look.
These Fighting Fruit Flies Are Superheroes of Brain Science
Everything You Never Wanted to Know About Snail Sex
Besides being hermaphrodites — all snails have both boy and girl parts.
Everything You Never Wanted to Know About Snail Sex
Decorator Crabs Make High Fashion at Low Tide
When you live by the seashore, one day you're in, the next day you're lunch.
Decorator Crabs Make High Fashion at Low Tide
Why Does Your Cat's Tongue Feel Like Sandpaper?
It's not vanity. For cats, staying clean is a matter of life and death.
Why Does Your Cat's Tongue Feel Like Sandpaper?
If Your Hands Could Smell, You’d Be an Octopus
Those hundreds of powerful suckers on octopus arms do more than just stick.