SciShow
White Sand Beaches: You're Sunbathing on Fish Poop
Find out how parrotfish, zooxanthellae, calcium carbonate (aragonite), and poop combine to make the white sandy beach sunbathers love.
SciShow
Why Are There No Sea Snakes in the Atlantic
The Atlantic Ocean is the second largest on Earth, and yet there are no sea snake populations to be found there. What’s keeping aquatic serpents from making a home in these waters?
SciShow
A Song of Ice and New Species
Hank shares losses and finds this week, including a huge amount of Antarctic ice that’s lost for good, and 10 cool new species that are last year’s top finds.
SciShow
News Bummers Poison Fog Sad Sperm & SAM
Hank loves science because it helps us appreciate the world more, but not everything that science does makes him happy - reports of poison fog on the West coast of the United States; dramatic decreases in sperm counts; and a lack of...
MinuteEarth
Why We Sucked At Counting Fish (Until Now)
We try to leave jargon out of our videos, but if you want to learn more about this topic, here are some handy keywords to get your googling started: - Milky Way: Earth's home galaxy - The Malaspina Expedition 2010: A research project to...
SciShow
Why Does the Ocean Smell Like That?
What gives the ocean its distinct, sometimes pungent smell? It turns out the answer is more than just dead fish or salt: it’s the scent of tons of phytoplankton being munched on!
TED-Ed
Real-life "Alien" jaws | Darien Satterfield
After stalking a cuttlefish, a moray eel finally pounces. As the eel snags the mollusk in its teeth, its prey struggles to escape. But before it can wiggle away, a second set of teeth lunge from the eel's throat. This adaptation is...
Be Smart
Will You Still Eat Raw Fish After Watching This Video?
Have you ever noticed that warning about raw or undercooked seafood at the bottom of restaurant menus? Ever wondered why it's there? Because fish carry a ton of parasites, and if they aren't prepared correctly then those parasites can...
SciShow
Doggerland: A Real-Life Atlantis
Though we probably won’t find a literal Atlantis beneath the sea, that doesn’t mean that a human settlement hasn’t ever been lost to the water. Meet Doggerland.
TED Talks
TED: A new perspective on the journey to net-zero | Amina J. Mohammed
Climate action can be a vehicle to deliver dignity, opportunity and equality for all. UN Deputy Secretary-General Amina J. Mohammed invites us to reimagine what the journey to net-zero could look like if we invest in people's climate...
SciShow Kids
5 Animal Valentines! | Valentine's Day | A SciShow Kids Compilation
It’s Valentine’s Day, and Jessi and Squeaks got Valentines from their awesome animal friends all over the world! Hang out with them as they read some silly Valentine poems and learn about the animals that sent them!
SciShow
Life Inside a Dead Whale
Ever wonder what it'd be like to have a whale as a house? Wonder no more after you watch this episode of SciShow!
Be Smart
Nature's Living Fireworks
Nearly all life on Earth is ultimately powered by light. But many creatures have learned how to make their own. This week we investigate the beautiful phenomenon of bioluminescence. From blinking fireflies on summer nights to glowing...
SciShow
How Giant Creatures Eat Tiny Meals: 5 Fabulous Filter Feeders
Some of the largest creatures that have ever lived on earth thrive by eating tiny prey. Why don’t they eat bigger fish, and how can they even consume these things they can barely see? Here are 5 creatures that grow to be giants by eating...
SciShow
What Will the World Look Like, 2°C Warmer?
A world only 2°C warmer, or 3.6°F, would be one that is much different than the world we live in today, but what does that actually look like?
TED Talks
TED: Why you should care about whale poo | Asha de Vos
Whales have a surprising and important job, says marine biologist Asha de Vos: these massive creatures are ecosystem engineers, keeping the oceans healthy and stable by ... well, by pooping, for a start. Learn from de Vos, a TED Fellow,...
SciShow
The Mountains Below Us (And Other Deep Sea Treasures) | Compilation
From spooky-looking towers that belch white "smoke" to a mountain range in the middle of the Atlantic ocean, the seafloor is full of features as dynamic as the surface! That's part of why we've done many SciShow episodes about the ocean....
SciShow
How Does a Box-Shaped Fish Swim?
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.
SciShow
Are We Overdue for a Megaquake?
If you live in the U.S. you may have heard that the Pacific Northwest is supposedly overdue for an earthquake of colossal, devastating proportions. If that’s true, how can we better understand the threat and be prepared for the day it...
SciShow
3 Mysteries Solved by Extraterrestrial Tsunamis
Earth isn't the only planet that gets rocked by giant tsunamis. In fact, giant waves on other planets have helped us solve a few mysteries about our solar system.
SciShow
The Science of Shipwreck Graveyards
Modern technology can make us forget how cruel the ocean once was to seafarers. Even with these new technologies, some parts of the sea are still just plain dangerous. Here are a few places on Earth where ships have met the briny depths.
TED-Ed
TED-ED: The coelacanth: A living fossil of a fish - Erin Eastwood
The coelacanth, a prehistoric fish that was mistakenly thought to have gone extinct at the same time as the dinosaurs, has managed to stick around our seas for 360 million years. Erin Eastwood details the surprising "back from the dead"...
SciShow
Earth’s Underwater Topography & The Recent Space Walk
We just mapped out 80% of our earth and gave the ISS a tuneup! Hank Green explains what is going on in this episode of SciShow Space News!