Where Did the At Symbol Come From?

A human fetus doesn't develop retinas until around gestational week 28. Learn how researchers have tried to figure out what babies can see in the few remaining weeks before they're born in this classic episode of BrainStuff, based on this article: https://health.howstuffworks.com ...  Show more

You could probably outsprint an alligator no matter what pattern you ran in -- but it's extremely unlikely that you'd ever need to. Learn how alligators do and don't attack in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/reptiles/alligator- ...  Show more

It’s fairly strange that humans, unlike many other mammals, don’t have hair all over. Our lack of body hair and wide geographic distribution led to the variation of sun-protective melanin in our skin. For the hair that remains, why did some groups develop curls while others did n ...  Show more

It’s fairly strange that humans, unlike many other mammals, don’t have hair all over. Our lack of body hair and wide geographic distribution led to the variation of sun-protective melanin in our skin. For the hair that remains, why did some groups develop curls while others did n ...  Show more

Why is Mindy playing basketball with a ball covered in hair? And what does that have to do with the science of HAIR? We've got questions AND answers on today's hair-raising round of Two Whats?! And A Wow! We're challenging you to find facts from fiction about hair! See Privacy Po ...  Show more

For many Black people, transitioning to natural hair can feel frustrating, especially if you're doing it for the first time. Experts share what you need to know about growing out natural hair, from washing it and styling it – to learning to love it. See pcm.adswizz.com for inform ...  Show more