SciShow
9 of the Weirdest Sperm Adaptations
You probably have a vague idea of what sperm does, but not all sperm are created equal, and some have even developed unique adaptations to get where they're going.
SciShow
How Do Seedless Watermelons Reproduce?
Seedless watermelons are basically the best thing ever. But they’re also a delicious paradox. Seeds are a key part of plant reproduction. So how do you breed a plant that doesn’t make any seeds?
TED-Ed
TED-ED: The amazing ways plants defend themselves - Valentin Hammoudi
Plants are constantly under attack. They face threats ranging from microscopic fungi to small herbivores like caterpillars, up to large herbivores like elephants. But plants are ready, with a whole series of internal and external...
SciShow
Why Do Apples Turn Brown?
Why do apples turn brown after you cut them, or when they rot? Basically for the same reason that human hair, eyes and skin is brown, too. Not that we're calling you rotten. Quick Questions explains!
SciShow
Are Broken Bones Stronger After They Heal?
You might have heard that bones are stronger after they break, which sounds ridiculous, but for a short period of time, it might be true!
SciShow
3 Animals That Breathe Through Their Butts
If you want to be able to breathe underwater, you're going to need to get creative. So some turtles, dragonfly nymphs, and sea cucumbers decided to use their butts.
SciShow
10 Fantastic Fungi Superpowers
Join Hank Green to learn ten weird, scary, and amazing things fungi can do! Chapters MAKE YOU HALLUCINATE 0:50 psychotherapy 1:43 Claviceps purpurea Credit: Dominique Jacquin 2:08 SALEM WITCH TRIALS 2:39 2 MAY CAUSE MASS HYSTERIA 2:49...
SciShow
What's in Those Packets That Say 'Do Not Eat' (And Why Shouldn't I Eat It)
Quick Questions explains what’s in those little packets you find in packaged food, bottles of pills, and leather goods, and why you should do what the label says and not eat them.
Crash Course
Animal Development: We're Just Tubes - Crash Course Biology
Hank discusses the process by which organisms grow and develop, maintaining that, in the end, we're all just tubes.
SciShow
6 Common Misconceptions About Cancer
Today we take a look at six misconceptions about cancer that seem plausible, but just don't hold up. Chapters SHARKS DON'T GET CANCER & TAKING SHARK CARTILAGE SUPPLEMENTS WILL CURE OR PREVENT CANCER 0:45 IF YOU HAVE CANCER YOU SHOULD...
TED-Ed
TED-ED: How to sequence the human genome - Mark J. Kiel
Your genome, every human's genome, consists of a unique DNA sequence of A's, T's, C's and G's that tell your cells how to operate. Thanks to technological advances, scientists are now able to know the sequence of letters that makes up an...
SciShow
What are Blood Types?
Quick Questions explains why, when it comes right down to it, there are really only eight kinds of people in the world.
TED-Ed
TED-Ed: How do carbohydrates impact your health? - Richard J. Wood
The things we eat and drink on a daily basis can impact our health in big ways. Too many carbohydrates, for instance, can lead to insulin resistance, which is a major contributor to cardiovascular disease and Type 2 Diabetes. But what...
SciShow
Genetically Engineered Cancer-Fighting Algae
Learn how scientists are fighting cancer... with algae!
Crash Course
Immune System, part 1: Crash Course A&P
Our final episodes of Anatomy & Physiology explore the way your body keeps all that complex, intricate stuff alive and healthy -- your immune system. The immune system's responses begin with physical barriers like skin and mucous...
SciShow
Your Brain is Plastic
ank explains the gift that your brain gives you every day: the gift of neural plasticity -- the ways in which your brain actually changes at the cellular level as you learn.
SciShow
6 Weird Mushrooms (And Other Fungi)
Mushrooms can be pretty weird! Some have the power to trick animals into caring for them, appear to bleed, or even clean up radiation!
Chapters
SCLEROTIA Credit: Tocekas
0:59
EGG-MIMICKING FUNGUS
2:05
HYPHAE
...
Bozeman Science
Eukarya
Paul Andersen discusses the defining characteristics of the members of Domain Eukarya. He starts with a brief description of the phylogeny of life on earth. He then discusses the major characteristics of eukaryotic cells. He explains how...
MinuteEarth
Epigenetics: Why Inheritance Is Weirder Than We Thought
Epigenetics: Why Inheritance Is Weirder Than We Thought
Be Smart
DNA Doesn't Look Like What You Think!
Biology textbooks are full of drawings of DNA, but none of those show what DNA actually looks like. Sure, they're good models for understanding how DNA works, but inside of real cells, it's a whole lot more interesting. Learn why we...
SciShow
We're One Step Closer to Understanding Aging
Scientists have had a variety of hypotheses about how chemical stress can affect DNA to cause aging, but a new study has just shown the process in action.
Bozeman Science
Interstitial Fluid
Paul Andersen explains the importance and location of interstitial fluid. He describes both the hydrostatic and osmotic pressures that move fluid between the interstitial fluid and the capillary. He also explains the major function of...
Be Smart
Is Inheritance Really All In Our Genes?
Epigenetic inheritance is really weird, but is it real?