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How Do Our Eyes Get Their Color?
There are no blue or green pigments in the human eye, so how do those eye colors occur? Learn about the complex genetics and light scattering that gi…
1 year, 4 months ago
Who Actually Wins (and Loses) in a Trade War?
Governments impose tariffs (which are border taxes paid by the importer) to help protect their nation's businesses from foreign competition. Learn ho…
1 year, 4 months ago
Why Are Komodo Dragons So Deadly?
We used to think Komodo dragons harbored bacteria in their mouths that made their bites deadly, but it turns out they have venom and iron-tipped teet…
1 year, 4 months ago
Do Other Planets Have Tectonic Plates?
Some scientists think tectonic plates are a prerequisite for life as we know it. Learn what we know about plate tectonics elsewhere in our solar syst…
1 year, 4 months ago
Why (and How) Does Paper Crumple?
It turns out that thin, bendy sheets like paper crumple in predictable ways -- and we can learn a lot from the process. Learn more about the protecti…
1 year, 4 months ago
BrainStuff Classics: What Exactly Are Frankincense and Myrrh?
Frankincense and myrrh play a part not only in the story of Christmas, but in lots of other religious traditions as well -- and a few practical ones,…
1 year, 5 months ago
How Does Fruitcake Work?
Whether you love it, hate it, or hurl it with a trebuchet, fruitcake holds a dense place in holiday traditions. Learn how it came to be (and where to…
1 year, 5 months ago
Why Carve Radishes for Christmas?
In Oaxaca, Mexico, a pre-Christmas tradition has hundreds of artists carving radishes into fun and festive figures every Dec. 23. Learn about La Noch…
1 year, 5 months ago
BrainStuff Classics: Why Don't Evergreen Trees Lose Their Needles?
Evergreens' needles are their leaves, so why don't they change color and drop in the fall? Learn how evergreen leaves work in this classic episode of…
1 year, 5 months ago
BrainStuff Classics: How Do Cold-Blooded Animals Survive the Winter?
Reptiles and amphibians have all sorts of adaptations for surviving cold weather, even in places where temperatures dip below freezing. Learn how the…
1 year, 5 months ago