How do we defend people's freedom and dignity against authoritarianism, when the "law of war" doesn't seem to apply anymore? In the face of the Russian occupation of Ukraine, human rights lawyer and Nobel laureate Oleksandra Matviichuk...

Many people deal with a nail-biting habit at some point in their lives. Some will go to great lengths to try to stop, employing strategies like dipping their hands in salt or wearing gloves. And while not all of us are nail-biters, most...

There’s a lot we just don’t know about death, but even among the things we think we do know, there are a lot of misconceptions. Here are 5 weird things we believe about death!

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You’ve probably had some. White lines or spots that appear and grow out with your nails. Why does this happen? There are a few reasons, ranging from bumping your nail to poisoning. Check out his Quick Question to see what might apply to...

The majority of us can probably agree that the sound of nails on a chalkboard is unpleasant, but why is that? Theories range from evolutionary survival mechanisms to the anatomy of the human ear. Find out more in this episode of SciShow!

Did you know you have useful tools right at your fingertips? That's right: your fingernails! Jessi and Squeaks learn why fingernails are so important!

Venom can kill ... or it can cure. In this fascinating talk, marine chemical biologist Mandë Holford shares her research into animal venom, from killer sea snails to platypuses and slow lorises -- and explores its potential to one day...

Jessi is getting a haircut later, but what makes it so that your hair doesn't hurt when you go to get it cut?

We've all got bad habits that we might feel a little bad about, but we're here to tell you stop feeling guilty! Kind of.

Consider the claw. Frequently found on animals around the world, it's one of nature's most versatile tools. Bears use claws for digging as well as defense. An eagle's needle-like talons can pierce the skulls of their prey. Even the...

In this video Paul Andersen details the important structures and functions of the integumentary system. The integumentary system includes the skin, hair and nails in humans.

Your nails can do more than just look pretty. They can tell you some things about your health!

A common mistake English learners make is mixing up the present simple and present continuous tenses. Present simple is used for things that are generally true and permanent. Present continuous is used for things that are are happening...

Howcast - Learn how to create a pizza nail design in this Howcast nail tutorial.

Howcast - Learn how to do a marble manicure from Spa Taxi owner Danielle Corbin Jaime in this Howcast nail tutorial.

Howcast - Learn how to do caviar nails from Spa Taxi owner Danielle Corbin Jaime in this Howcast nail tutorial.

Howcast - Learn how to dry nails fast from Spa Taxi owner Danielle Corbin Jaime in this Howcast nail tutorial.

Howcast - Learn how to apply base coat to your nails from Spa Taxi owner Danielle Corbin Jaime in this Howcast nail tutorial.

Howcast - Learn about various types of nail base coat and their uses from Spa Taxi owner Danielle Corbin Jaime in this Howcast nail tutorial.

Howcast - Learn how to pick the right nail file from Spa Taxi owner Danielle Corbin Jaime in this Howcast nail tutorial.

Howcast - Learn the tools you need to give yourself a professional manicure at home from Spa Taxi owner Danielle Corbin Jaime in this Howcast nail tutorial.

Howcast - Learn how to soak nails before a manicure from Spa Taxi owner Danielle Corbin Jaime in this Howcast nail tutorial.

Howcast - Learn how to remove old nail polish from Spa Taxi owner Danielle Corbin Jaime in this Howcast nail tutorial.

Howcast - Learn how to cut and shape nails from Spa Taxi owner Danielle Corbin Jaime in this Howcast nail tutorial.