SciShow
Why Can't You Compost Meat?
Composting becomes more widespread and accessible all the time, keeping millions of tons of food waste from ending up in landfills every year. But there is one quirk of some composting programs that can be a little annoying: they don't...
SciShow
What If We Killed All the Wasps?
Unlike their friendly, flower-pollinating cousin, the bee, wasps are best known for stinging people, ruining picnics, and generally being jerks... so should we just totally get rid of them?
PBS
Where Did Viruses Come From?
There are fossils of viruses, of sorts, preserved in the DNA of the hosts that they've infected. Including you. This molecular fossil trail can help us understand where viruses came from, how they evolved and it can even help us tackle...
Crash Course
Big Guns: The Muscular System - CrashCourse Biology
Hank tells us the story of the complicated chemical dance that allows our skeletal muscles to contract and relax.
SciShow
The World's First Malaria Vaccine Gets a Shot in Africa | SciShow News
Last week, the World Health Organization announced that a malaria vaccine has finally made it through all the regulatory hurdles and is being distributed in the country of Malawi. Learn how it works and why it’s taken so long to develop...
SciShow
A New Mathematical Model of the Origin of Life
Scientists have once again used big, complex math equations to help us understand more about the universe we inhabit, this time about the origins of life on earth.
SciShow
A Zombie Gene Keeps Elephants from Getting Cancer | SciShow News
Elephants are huge, so you might think all those extra cells would mean more cancer, but scientists have some new insights into why this is isn't the case.
SciShow
How the Keto Diet Went from Arctic Staple to Bro-Science
The keto diet is a high fat, low carb diet that proponents say is not just great for losing weight, but is good for your brain health, too. Does the science behind the diet back those claims up? We delve into the origin of the keto diet...
SciShow
CRISPR: A Gene-Editing Superpower
Any molecular biologist will tell you that genetic engineering is tricky. But up until recently we might be witnessing a new age in human development.
SciShow
Why HIV Isn't a Death Sentence Anymore
In the second video of our two-part series on HIV and AIDS, we look at the challenges that have kept scientists from developing a cure, and the treatments that have still managed to improve the outlook for those infected. Chapters View...
Crash Course
Photosynthesis: Crash Course Biology
Hank explains the extremely complex series of reactions whereby plants feed themselves on sunlight, carbon dioxide and water, and also create some by products we're pretty fond of as well.
Bozeman Science
Signal Transmission and Gene Expression
Paul Andersen explains how signal transmission is used to alter both cellular function and gene expression. He uses the example of epinephrine release in humans and how it is used in the fight or flight response. Epinephrine causes liver...
SciShow Kids
Why Does Cooking Eggs Make Them Hard?
Jessi and Squeaks grab a snack and learn all about why boiling eggs makes them hard! Second Grade Next Generation Science Standards Disciplinary Core Ideas: PS1.A: Structure and Properties of Matter - Different kinds of matter exist and...
SciShow
Engineering Plants That Fertilize Themselves to Save the World
Humans have relied on fertilizers to grow their plants for thousands of years. But the production of synthetic fertilizers also requires an immense amount of energy that comes primarily from fossil fuels and therefore contributes to...
Bozeman Science
Signal Transduction Pathways
Paul Andersen explains how signal transduction pathways are used by cells to convert chemical messages to cellular action. Epinephrine is used as a sample messenger to trigger the release of glucose from cells in the liver. The...
SciShow
Spicy Tomatoes and 4 Other GMOs That Could Save Lives
Genetically modifying plants and animals is complicated business, but some scientists think this tool could be used to save lives in a variety of ways.
Bozeman Science
Viruses
Paul Andersen describes the important characteristics of viruses. He starts with a brief description of origin theories. He then describes the two characteristics of all viruses; genetic information and protein coats. He also describes...
SciShow
Why Can't We Make Spider Silk?
People have been using silkworm silk to make stuff for thousands of years, but spider silk could potentially be even more useful. It's stronger than steel, super stretchy, and could be made into anything from bridge cables to...
SciShow
Which Seafood Is Better for the Environment: Farmed or Wild Caught?
There’s no doubt that fish is a great source of protein in one’s diet. But the debate about whether fish farming or commercial fishing is worse for the environment continues and, as you might suspect, there isn’t a straightforward answer.
SciShow
What Happens When You Stop Eating?
You know what starvation is, but do you know what it does to you? Hank walks you through the three major metabolic phases of starvation, from burning sugars to, basically, self-cannibalism.
SciShow
Microbes Might Survive on Mars | SciShow News
We’re all excited about the Mars rover Perseverance this week, but scientists are also working on some other exciting things!
SciShow
Why Are Flamingos Pink?
What makes flamingos go from grey to pink? And can the same thing happen in humans? Quick Questions explains!