TED-Ed
TED-Ed: What really happens to the plastic you throw away - Emma Bryce
We've all been told that we should recycle plastic bottles and containers. But what actually happens to the plastic if we just throw it away? Emma Bryce traces the life cycles of three different plastic bottles, shedding light on the...
Crash Course
Intelligent Design: Crash Course Philosophy
Last week we introduced Thomas Aquinas’s four cosmological arguments for the existence of god; today we introduce his fifth argument: the teleological argument, and the ensuing dialogue it initiated.
SciShow
Why Are There Animals on My Face?!
It's true. You have tiny mites living all around your face. But who are they? And how did they get there? QQ has the A!
SciShow
Why Body Hair?
In today's episode Hank talks about hair: What's it good for, what's it made of, and why do we have less than other mammals?
TED-Ed
TED-ED: Are you a body with a mind or a mind with a body? - Maryam Alimardani
Our bodies _ the physical, biological parts of us - and our minds - the thinking, conscious aspects - have a complicated, tangled relationship. Which one primarily defines you or your self? Are you a body with a mind or a mind with a...
SciShow
Why Are There Animals on My Face!
It’s true. You have tiny mites living all around your face. But who are they? And how did they get there? QQ has the A!
TED-Ed
TED-Ed: The genes you don't get from your parents (but can't live without) | Devin Shuman
Inside our cells, each of us has a second set of genes completely separate from our 23 pairs of chromosomes. And this isn't just true for humans— it's true of every animal, plant, and fungus on Earth. This second genome belongs to our...
SciShow
How People Have Evolved to Live in the Clouds
High elevations can be a problem for humans. Since the air is thinner, you get less oxygen with every breath, leading to all kinds of negative side effects. But there are millions of people around the world who spend their whole lives at...
SciShow
The Bigger Stem Cells Are, the Harder They Fall
When it comes to our blood-producing stem cells, biologists have learned that bigger is not better. And a study has taken a look at the accomplishments and obstacles of an in-progress attempt to restore a large belt of degraded land...
SciShow
Why You Might Want Parasitic Worms
Some doctors have actually found a connection between having parasitic worms and not having immune system problems like allergies or arthritis.
SciShow
Obesity
Hank tells us some of the surprising things that could be causing or contributing to the obesity epidemic.
TED Talks
Fredy Peccerelli: A forensic anthropologist who brings closure for the "disappeared"
In Guatemala's 36-year conflict, 200,000 civilians were killed — and more than 40,000 were never identified. At the Forensic Anthropology Foundation of Guatemala, Fredy Peccerelli and his team use DNA, archeology and storytelling to help...
SciShow
Fluid Dynamics and Aliens! (Okay, Not Really) | SciShow Quiz Show
This week, Dr. Shini Somara goes toe to toe with Hank in a battle of wits about fluid dynamics and life in space.
Be Smart
Can We Get Older Without Aging?
Nothing is guaranteed in life except death, taxes, and entropy. What do other life forms have to teach us about staying alive as we get old, and will we ever conquer death?
TED-Ed
TED-Ed: How do your hormones work? - Emma Bryce
Over our lifetimes, our bodies undergo a series of extraordinary metamorphoses: we grow, experience puberty, and many of us reproduce. Behind the scenes, the endocrine system works constantly to orchestrate these changes. Emma Bryce...
SciShow Kids
Fungi: Why Mushrooms Are Awesome | Biology for Kids
What's something that's neither vegetable or meat, digests food on the outside of its body, glows and the dark, and can go on top of your pizza? The amazing mushroom!
Crash Course
Complex Animals: Annelids & Arthropods - CrashCourse Biology
Hank continues our exploration of animal phyla with the more complexly organized annelida and arthropoda, and a biolography on insects.
Crash Course
Nitrogen & Phosphorus Cycles: Always Recycle! Part 2 - Crash Course Ecology
Hank describes the desperate need many organisms have for nutrients (specifically nitrogen and phosphorus) and how they go about getting them via the nitrogen and phosphorus cycles.
MinuteEarth
MinuteEarth Explains: Cats vs Dogs
In this collection of classic MinuteEarth videos, we learn more about the planet’s two favorite pets.
SciShow
How Does Hair Know When to Stop Growing?
The hair on your scalp can get really long, but your leg hair doesn't sweep the floor. Why not?
Be Smart
Incredible Tails Of Amazing Whales!
Whales are amazing animals. Since they evolved from land mammals, their biology breaks ALL the rules! Well, as whales say, rules were meant to be broken.
SciShow
The Deal with Protein
People like to say all kinds of things about protein – like, you need to eat lots of it to build muscle and lose weight. The truth is, the science of protein and how your body uses it is much more complicated than that.
Crash Course Kids
The Basics of Freshwater
We have a lot of water on Earth, but we also can't actually drink much of it... or use it for farming. That's because most of the water on Earth is saltwater. We humans, like a lot of living things, need freshwater to survive. In this...
SciShow
Bears Have Babies While They’re Hibernating
Bears forgo many activities to conserve their energy in the winter when food is scarce, including eating, peeing, and pooping. There is one thing that they specifically DO do during the winter, though: give birth! But, giving birth...