Box-shaped fish might seem like they don't have the most efficient body shape, but there are some surprising perks to being an underwater cuboid creature.

Traveling is extremely arduous for microscopic sperm -- think of a human trying to swim in a pool made ofother humans. We can compare the journey of a sperm to that of a sperm whale by calculating the Reynolds number, a prediction of how...

In this whimsical talk and live demo, scientist Li Wei Tan shares the secrets of bubbles -- from their relentless pursuit of geometric perfection to their applications in medicine and shipping, where designers are creating more efficient...

Is there an equation for intelligence? Yes. It's F = T ∇ Sτ. In a fascinating and informative talk, physicist and computer scientist Alex Wissner-Gross explains what in the world that means.

Learn about the robots inspired by animals with Hank!

Cha
pters

View all
ROBOTS ARE JUST MACHINES DESIGNED TO A
CCOMPLIS
H ATASK
0:31
THERE'S A LOT MORE TO FLYING
THAN JU
ST FLAPPING...

Hank introduces us to 6 blood-drinking (or otherwise consuming) animals that you may not be aware of. Don't freak out... Chapters VAMPIRE BAT 1:35 LAMPREY 1:52 HOOD MOCKING BIRD 2:20 THE VAMPIRE FINCH 2:46 BUTTERFLIES 2:56 HUMANS 3:22

Lizards tend to scurry around in short bursts rather than running long distances, and the reason why might be nearly as old as life on land.

Welcome back to SciShow Quiz Show, where Hank goes head-to-head with Craig Benzine, better known as WheezyWaiter.

You're probably already familiar with some of the more common examples of super strong animals, like the crocodile with its powerful bite or the leafcutter ant's impressive overhead carry. However, there are lots of...

Though people are most familiar with Plato's fictional Atlantis, many real underwater cities actually exist. Peter Campbell explains how sunken cities are studied by scientists to help us understand the lives of our ancestors, the...

Lewis Pugh talks about his record-breaking swim across the North Pole. He braved the icy waters (in a Speedo) to highlight the melting icecap. Watch for astonishing footage -- and some blunt commentary on the realities of supercold-water...

When you imagine a walrus, you probably picture it way smaller than it actually is. It’s because our brains meddle with our senses in more ways than you might expect.

Jumping into a refreshingly cold body of water on a hot summer day can feel wonderful, except for your nose. Why does it hurt so much when you get water up your nose?

After he swam the North Pole, Lewis Pugh vowed never to take another cold-water dip. Then he heard of Lake Imja in the Himalayas, created by recent glacial melting, and Lake Pumori, a body of water at an altitude of 5300 m on Everest --...

For thousands of years, sailors have been telling stories of a mysterious phenomenon called dead water. Even after scientists figured out why it happens, it still affects swimmers today.

There have been a lot of scientific discoveries around COVID, but other science stories did happen in 2020 — including amazing discoveries about everything from dinosaurs to parasites.

What swims in rivers and the ocean and is an awesome parent? Jessi and Squeaks talk about the amazing life cycle of salmon.

Elephant seals are among the only known animals on earth to migrate twice a year, but how they do it makes the already incredible feat even more astounding.

We may think of a lot of critters with crab-like body plans as crabs, but, technically, many of them are other types of crustaceans. So why do they share so many physical traits?

For humans, being upside-down isn’t a comfy way to hang out for very long, but for these six animals, upside-down feels just right!

Cha
pters
THREE-
TOED SLO
TH
0:38
U
PSIDE-DO
WN JELLYFIS
H

...

From peeing out of their mouths to being capable of living in icy water, turtles have evolved remarkable, but a little bit bizarre traits to survive.

This weird-looking creature has been mistaken for a lot of things, including a whale placenta and a sea monster as well as a garbage bag. And less often, it’s recognized for what it is: a jellyfish!

Some fish will never win any beauty pageants, but they still deserve our admiration, respect, and love, especially since their “ugly” traits are actually incredible examples of evolutionary innovation.

We're pretty good at inventing things, but stealing from nature is a great way to solve some problems!