How Do Butterflies Get Their Brilliant Colors?

Helen is a figure from Greek myth -- a daughter of Zeus with a mortal woman, and said to have been the most beautiful woman in the world. Learn more about her (and how she perhaps inadvertently started the Trojan War) in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/history-vs-myth/helen-of-troy.htmSee omnystudio.com/listener for privacy information.

Your heart needs blood as much as any other muscle in your body, and it receives it the same way -- just a little earlier than anyone else. Learn how the coronary arteries work (and what can go wrong when they don't) in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/human-body/systems/circulatory/heart-pump-blood.htmSee omnystudio.com/listener for privacy information.

Butterfly wings often come in striking, iridescent colors -- but it's not from pigments (or not entirely). Learn how microscopic structures give butterfly wings their flash in today's episode of BrainStuff, based on this article: https://animals.howstuffworks.com/insects/butterfly-colors.htmSee omnystudio.com/listener for privacy information.

In the year 1066, the illigitimate son of a Norman duke conquered England and became its king, changing English history (and language!) forever. Learn how William the Conquerer rose and ruled in today's episode of BrainStuff, based on this article: https://history.howstuffworks.com/european-history/william-conqueror.htmSee omnystudio.com/listener for privacy information.

OK, we're almost sure the answer is no. But there was a fossil-based reason that 'Jurassic Park' included this detail. Learn about the real-life Dilophosaurus in today's episode of BrainStuff, based on this article: https://animals.howstuffworks.com/dinosaurs/dilophosaurus.htmSee omnystudio.com/listener for privacy information.

Your pinky toes are actually powerhouses of locomotion. Learn how they help us move -- and what can go wrong if they get injured -- in today's episode of BrainStuff, based on this article: https://health.howstuffworks.com/human-body/parts/surprise-pinky-toe-does-serve-purpose.htmSee omnystudio.com/listener for privacy information.

The @ sign goes by many names today, but it's only so commonplace because of medieval merchants and one 1970s programmer. Learn more about the at sign (or arroba, Klammeraffe, strudel, grisehale, or gül) in this episode of BrainStuff, based on this article: https://people.howstuffworks.com/arroba.htmSee omnystudio.com/listener for privacy information.

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/pregnancy-and-parenting/pregnancy/fetal-development/what-do-babies-see-before-birth.htmSee omnystudio.com/listener for privacy information.

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-zigzag.htmSee omnystudio.com/listener for privacy information.

The 30-year feud between these two families is more dramatic than fiction -- and may be the starting point of negative stereotypes about Appalachia. Learn about the story behind the Hatfields and McCoys in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/american-history/hatfields-and-mccoys.htmSee omnystudio.com/listener for privacy information.