TED Talks
Lucy Cooke: Sloths! The strange life of the world's slowest mammal
Sloths have been on this planet for more than 40 million years. What's the secret to their success? In a hilarious talk, zoologist Lucy Cooke takes us inside the strange life of the world's slowest mammal and shows what we can learn from...
Amoeba Sisters
Biomagnification and the Trouble with Toxins
Explore biomagnification which can happen when toxins become more highly concentrated when moving up through trophic levels in the food chain. Uncontrolled use of DDT is used in video as an example. Learn why bioaccumulation can occur in...
SciShow
"Flesh-Eating" Bacteria
Hank gets straight to the facts in the unfortunate case of Aimee Copeland, who was injured during a zip-lining accident and subsequently contracted a rare disease.
SciShow
Behold—Poisonous Snakes! (Yes, You Read That Right)
While it’s true that most snakes aren’t considered poisonous, there definitely are poisonous snakes, with poison for their predators and venom for their prey.
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
5 of the World's Most Dangerous Chemicals
They explode when you touch them. Even a millionth of a gram can kill you. They can even disable you with their horrifying smell. SciShow introduces you to give of the most dangerous chemicals in the world.
SciShow
What Happens When a Venomous Snake Bites Itself?
Venomous snakes produce some of the world’s deadliest substances, so they have to be pretty careful about how they use it. But what happens if they accidentally inject themselves with their own harmful cocktail?
SciShow
What Happens If You Eat Mold?
Even if you don’t notice that your bread is fuzzy before you chow down, it’s not going to kill you … probably.
SciShow
Hardcore Mice use Scorpion Venom as a Painkiller
Grasshopper mice take scorpion venom that could kill a human and use it to numb their pain. What makes these tiny mice so hardcore?
SciShow
How These Snakes Evolved to Spit… IN YOUR EYE
If you spook a spitting cobra, it might literally shoot venom at your eyes... And our ancestors might have caused them to do this, evolutionarily speaking.
SciShow
Sparkling Clouds and Other Wild Ways Cephalopods Use Ink
Octopuses and other cephalopods can squirt ink when threatened, but the forms the ink takes can go way beyond your typical smokescreen.
TED Talks
TED: The loves and lies of fireflies | Sara Lewis
Biologist Sara Lewis has spent the past 20 years getting to the bottom of the magic and wonder of fireflies. In this charming talk, she tells us how and why the beetles produce their silent sparks, what happens when two fireflies have...
SciShow
Should You Really 'Feed a Cold, Starve a Fever'?
Old adages can be pretty hit or miss—especially when it comes to medical advice—but it turns out there may actually be some truth to the saying, "feed a cold, starve a fever."
SciShow
7 Medicines That Come from Super Toxic Critters
Scorpion venom and insect poison sound really deadly, but scientists are increasingly turning them into medical treatments that save millions of lives. Chapters CAPTOPRIL 1:18 SOUTH AMERICAN PIT VIPER Credit: Renato Augusto Martins 1:33...
SciShow
Animal Survival Skills: Poison Edition
We can purge our stomachs by vomiting when we consume something that our body thinks might be harmful, but what about animals that can't?
SciShow
Why Florida's Red Tide Is Killing So Many Animals | SciShow News
For weeks now, thousands of dead fish, turtles, manatees, and dolphins have been washing up on beaches in southwest Florida.
SciShow
Why Bacteria Don't Outweigh the Earth
Given just a little time, bacteria could outgrow earth, so what's stopping them?
SciShow
Prelude to a Revolution | Antibodies Series Part 1
You may have heard a lot of talk about antibodies lately, especially in relation to vaccines. We wanted to tackle this important subject, but these tiny objects are deceptively complex! So, this is the first of three episodes in a...
TED-Ed
TED-Ed: What does the liver do? - Emma Bryce
There's a factory inside you that weighs about 1.4 kilograms and runs for 24 hours a day. It's your liver: the heaviest organ in your body, which simultaneously acts as a storehouse, a manufacturing hub, and a processing plant. Emma...
TED-Ed
TED-ED: How does the immune system work? - Emma Bryce
Inside you, a daily battle is being waged and your immune system is at the frontline. Most of the time, you may not even notice it's there, but over the course of your life your immune system will guard you against hundreds of...
SciShow
7 Species That Were Saved From Extinction
Humans are pretty good at destroying things. Like habitats, animal populations... you catch my drift. But, there have been a few species that humans have helped bring back from the brink of extinction. Chapters 0:00 0:05 0:11 0:17 0:23 0:29
SciShow
Why You Can't Really Sweat Out Toxins
The human body has a few built-in methods for getting rid of toxins. Sweating seems like it should be one of them, but it isn't doing as much as you think.
SciShow
Why Can't I Wear My Dog's Flea and Tick Collars?
It seems like the easiest way to avoid tiny parasites is to just slap on your animal’s tick or flea collar and hike into the woods worry-free. But you definitely shouldn’t.
SciShow
Poisons and Venoms and Toxins, Oh My!
From daffodils to dangerous snakes, toxins are everywhere. Here's a collection of episodes about our favorite poisonous, venomous, and generally toxic organisms.