SciShow
Antimony: The Life-Saving Toxin
Antimony is toxic to inhale, swallow and touch, but it might also save your life.
SciShow
How To Make Antivenom
Bitten by a venomous snake? There's hope! French scientist Albert Calmette developed the first snake antivenom in the late 1890s, and did such a good job that we use his technique to this day. Antivenom works by stimulating the...
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...
TED Talks
TED: The secrets of spider venom | Michel Dugon
Spider venom can stop your heart within minutes, cause unimaginable pain -- and potentially save your life, says zoologist Michel Dugon. As a tarantula crawls up and down his arm, Dugon explains the medical properties of this potent...
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.
SciShow
7 of Australia's Most Terrifying Inhabitants
If you've spent any time on the internet, you know that Australia is host to all sorts of horrible spiders and snakes. But that doesn't even begin to cover the myriad of dangerous, sometimes deadly, plants and animals you might encounter...
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
SciShow Quiz Show: Weird Animal Parenting
How do adult strawberry poison frogs pass on toxins to their tadpoles? What happens when scientists add iodine to axolotl tanks? Find out, as our How To Adult hosts Rachel Calderon-Navarro, Project Manager at DFTBA, and Hank Green face...
SciShow
The Science (and Dangers) of Booze in Humans
Many of us choose to enjoy the effects of alcohol, and we know that drinking too much is a bad thing, but what kinds of things can actually happen when you drink too much for too long?
MinuteEarth
Why do Some Species Thrive in Cities?
Urban development can be tough on wildlife. But some plants and animals are adapting to our cities in surprising ways.
Bozeman Science
Effects of Changes in Pathways
Paul Andersen explains how changes in the signal transduction pathway can affect organisms. He begins with a brief discussion of the tetrodotoxin produced by the California Newt and then explains how anthrax affects adenylate cyclase and...
SciShow
For These 7 Species, Sex Changes Everything
Animals and plants come in an amazing variety of shapes, sizes and colors. And in some species, they take it pretty extreme to deal with the battles within and between sexes.
SciShow
Thank Goodness for Bacterial Cannibalism
Some species of bacteria have a wicked survival strategy: killing members of their own species or a closely-related one. There’s a lot we don’t know about it, but it's possible that someday we could potentially harness that knowledge to...
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
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
The Oversized Invasive Carrot That Can Give You Third Degree Burns
All plants get energy from the sun, but the giant hogweed gets another, dangerous superpower from the sun's light: the ability to burn skin with its sap.
SciShow
The Fly That Lays Eggs in Toad Nostrils
We were probably all told to quit picking our noses at one point, and by most standards, this is good advice. But if you were a toad, it might come in handy to scratch away blowfly eggs
SciShow
Why Bacteria Don't Outweigh the Earth
Given just a little time, bacteria could outgrow earth, so what's stopping them?
Be Smart
Your Salad Is Trying To Kill You
Plants are the most important source of nutrients for pretty much all of Earth's animals, and many of the planet's bacteria and fungi too. Humans like them so much that we line them up in salad bars so we can feast upon their crunchy...
SciShow
Three Creative Ways to Eradicate Diseases
Smallpox is the first and only human disease we've totally wiped out. However, thanks to breakthroughs made while eradicating smallpox and a number of other creative solutions , we've come really close to making a few more diseases a...
SciShow
5 Weird Reasons Not to Smoke
Hank gives you five MORE reasons why you should probably avoid smoking, or quit if you already smoke - in addition to those big ones you already know about. These are the weird reasons.
SciShow
6 Ways Species Rely on Humans for Survival
Sometimes, a species has declined so dramatically that they require serious human intervention to ensure they don’t disappear forever. Here are six ways we’re using conservation and science to keep those species alive....
Chapters
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SciShow
We Solved the Mystery of the Dying Birds
Across the southeastern United States, bald eagles have been dying unexplainedly for the past 25 years. In March of 2021, researchers announced that they had found the killer, and they hope we can use this knowledge to better protect...
TED-Ed
The world's most painful insect sting | Justin Schmidt
One of these three creatures is thought to possess the world's most painful insect sting: there's an ant that forages in rainforest canopies, a bee that protects a hive of delectable honey, and a wasp that paralyzes tarantulas. So which...