SciShow
This Is What Peak Crustacean Looks Like
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?
SciShow
SciShow Quiz Show: Invest in Your Digestion!
It's Green vs. Green in this week's quiz show as Hank battles Katherine to see who takes home all the marriage points.
SciShow
Why Don't Sharks Have Bones?
Eat facts, Shark Week! Hank takes you on a tour of the shark's amazing anatomy, including the many adaptations that made it a great predator -- despite not having any bones.
TED Talks
TED: 10 ways the world could end | Stephen Petranek
How might the human race end? Stephen Petranek lays out 10 terrible options and the science behind them. Will we be wiped out by an asteroid? Eco-collapse? How about a particle collider gone wild?
MinuteEarth
Why Sharks Are Covered In Teeth
Sharks wouldn’t be known for their fierce teeth today if it weren’t for their ancient scales.
Crash Course Kids
The Life Hydrologic
Last week we went up up up a mountain. Well, today we're going down down down into the ocean to see what habitats await us there. Yep, the ocean has layers and the types of things we encounter there change the deeper we go.
SciShow
The Shocking Truth About Electric Animals!
Learn more about electric animals with Hank Green.
TED Talks
TED: The power of venom -- and how it could one day save your life | Mandë Holford
Venom can kill ... or it can cure. In this fascinating talk, marine chemical biologist Mandë Holford shares her research into animal venom, from killer sea snails to platypuses and slow lorises -- and explores its potential to one day...
SciShow
7 of the Most Uniquely Fierce Sharks
Sharks come in a lot of different shapes and sizes and many of them don't look like the ones you see in movies. Here are seven sharks that went down some decidedly strange evolutionary paths.
Amoeba Sisters
Osmosis and Water Potential (Updated)
Explore the process of osmosis in this updated Amoeba Sisters video! Video features real life examples of osmosis, important vocab, and introduces concept of water potential and turgor pressure in plant cells. Expand details for table of...
SciShow
How Science Solved the Giant Eyeball Mystery
Hank combines two of his favorite things - talking to scientists and strange things washing up on the beach - to bring you the Mystery of the Giant Eyeball.
SciShow
Dangerously Smart: Why This Fish Almost Beached Itself
Fish are smarter than you think! Scientists have explored triggerfish's ability to learn some clever hunting tactics.
Be Smart
Doomsday Machines
Nuclear weapons represent the darker side of E=mc^2. Science has given us the ability to understand what will happen if these weapons are ever used again.... and what will happen if they are *never* used again.
SciShow
Is SHARKNADO Possible
Well? Is it? No. But that doesn't mean that this ... bizarre ... attempt at cinema doesn't raise some interesting questions. Questions that we will explore in this episode of SciShow. Hold on to your buckets!
SciShow
These Death-Defying Salmon Just Keep Spawning
Salmon make a hardcore journey upstream to their spawning grounds to reproduce, and it almost always ends with death. But some live to reproduce again, and more than once!
Be Smart
How Poop Shapes the World
Waste not, want not.... right? Poop, in all of its various forms throughout nature, shapes the world in ways you might not imagine. One creature's waste is another's fuel, and all over nature these leftovers help new life spring up....
TED Talks
Ashwin Naidu: The link between fishing cats and mangrove forest conservation
Mangrove forests are crucial to the health of the planet, gobbling up CO2 from the atmosphere and providing a home for a diverse array of species. But these rich habitats are under continual threat from deforestation and industry. In an...
TED Talks
Steven Strogatz: The science of sync
Mathematician Steven Strogatz shows how flocks of creatures (like birds, fireflies and fish) manage to synchronize and act as a unit -- when no one's giving orders. The powerful tendency extends into the realm of objects, too.
SciShow
How to Catch a Bird… If You’re a Fish
Some toothy tigerfish have been documented catching unlikely prey in the most unlikely of ways: snatching birds right out of the sky.
SciShow
This Fish Has a Serious Case of the Blues
There are a lot of brightly colored fish in the world, but lingcod, which are usually brown and white, can sometimes end up quite blue, and not just on the outside.
Amoeba Sisters
Gel Electrophoresis
Explore electrophoresis with The Amoeba Sisters! This biotechnology video introduces gel electrophoresis and how it functions to separate molecules by size. Expand video details for table of contents. Major Points in Video: Intro 00:00...
SciShow
A Brief History of Life on Earth: The Full Series
From the Archean Eon to the Holocene Epoch, check out this SciShow mini-series for a primer about life on earth.