SciShow
When Food Goes Bad | Compilation
Food can't stay fresh forever. From moldy bread to brown apples, here's the science behind what happens when food goes bad.
SciShow
Why Do We Get Freckles?
Your parents may have told you that every freckle on your face was a kiss from an angel, but SciShow is here to ruin that delusion for you.
Amoeba Sisters
Integumentary System
Join the Amoeba Sisters on this introduction to the Integumentary System! This video first introduces the important functions of this system. Then, this video takes a general tour through the epidermis (and each stratum of the...
SciShow Kids
Why Do I Have Freckles?
Do you know anyone with freckles? Maybe you have freckles yourself! Jessi has them, and she's been wondering what they are, where they come from, and why some people have them and some people don't!
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
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.
SciShow
7 Real-Life Unicorns
Unicorns may not exist on this planet, but Earth does have plenty of one-horned creatures that are just as remarkable, if not quite as majestic. Chapters NARWHALS 0:34 RHINOCEROS BEETLES 4:19 ASIAN RHINOCEROS BEETLE RHINOCEROS HORNBILLS...
SciShow Kids
Why Does Hair Turn Gray?
Hair can be so many different colors, but why do so many adults have gray hair?
SciShow
Are Blue Eyes Endangered?
SciShow explains the genetics -- and physics -- behind why blue eyes are blue, and what the future may be for the trait. Spoiler alert: Blue eyes aren't really blue! SciShow explains!
SciShow
Should I Wear Sunscreen in the Winter?
DNA damage doesn't just happen in the summer, but does that really mean we should wear sunscreen in the cloudy and chilly months?
SciShow
Can Plants Get Sunburned?
Plants need sunlight to live, but they also need to block the sun's more harmful rays. Plants can't put on sunscreen or find shade, so how do they avoid getting a gnarly sunburn?
SciShow
Will Stress Really Make You Go Gray?
Just like the myth that plucking one gray hair will make three sprout, stress making your hair white isn't actually a thing. Or is it?!
SciShow
Meet the Daring Matador Guppies of Trinidad
Convincing a predator to attack you might seem like a bad idea, but Trinidadian guppies have a whole bag of evolutionary tricks to help them do just that. But why do they do it, and how does it help them survive?
SciShow
Why Do I Get Dark Circles Under My Eyes?
Look alive, you! Today we’re diving into the science behind dark circles under your eyes, and all the things that might cause them – tiredness included.
SciShow
The Truth About Gingers
There are many names for them, but here at SciShow we lovingly refer to them as 'Gingers'. In this episode, Hank explains what gene is responsible for the creation of redheads.
Be Smart
Much A-Do About Hair
All mammals have hair at some point in their lives, but none of them wear it quite like humans. Why does our hair grow where it does, and not grow where it doesn't? How does our hair get its color? And why does it go gray and often fall...
TED-Ed
TED-ED: The science of skin color - Angela Koine Flynn
When ultraviolet sunlight hits our skin, it affects each of us differently. Depending on skin color, it'll take only minutes of exposure to turn one person beetroot-pink, while another requires hours to experience the slightest change....
Bozeman Science
Genotype Expression
Paul Andersen explains how genotypes can be expressed or not based on changes in the environment. He starts with a brief description of the Himalayan rabbit and how melanin production can be disrupted by high temperature. He explains how...
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
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
...
SciShow
How Do Animals Change Color?
Changing colors -- it’s not just for chameleons! Many species of octopuses, squid and cuttlefish can do it, as well as a few insects, and even mammals and birds. Find out what feats of biology different animals use to change their...
Science ABC
What Happens To Your Hair After You Die?
Hair resists decay even after death due to keratin, a structural protein. The structure and chemical composition of keratin make it difficult for organisms to break it down. Hair outlasts most other soft tissues due to the insoluble and...
Science ABC
Are Zebras Black with White Stripes or White with Black Stripes?
Zebras are actually black with white stripes. All animals get their colors from pigments called melanin which are of two kinds - eumelanin gives a black to brown color which pheomelanin gives reddish to yellow hues. The cells that create...