BrainStuff

Not having a permanent address or access to identifying documents can make voting in U.S. elections nearly impossible. Learn more about these challenges -- and what some organizations are doing to help -- in this episode of BrainStuff.

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The surviving records about who Druids were and what they did aren't considered reliable. Learn what we know and don't know about Druids in this episode of BrainStuff.

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Meteors can put on a spectacular show, but many of the pieces of debris that cause them are the size of pebbles -- or dust. Learn more about meteorites in this episode of BrainStuff.

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Over the course of one frigid winter, green anole lizards in Texas changed their genetic makeup to better tolerate cold. Learn about this example of super-quick vertebrate evolution in today's classic episode of BrainStuff.

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Folk wisdom dictates that you should avoid eating oysters, especially raw, in months that don't contain the letter R in their name. Learn why there's some logic there in this classic episode of BrainStuff.

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In 1897, a plaster replica of the Parthenon built in Nashville for the Tennessee Centennial Exposition proved so popular that it was rebuilt in a more permanent form. Learn more about Nashville's Parthenon in this episode of BrainStuff.

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Staple grains, like wheat and rice, can wear out the soil — and most have to be replanted from seed each year. Learn how researchers are seeking to create new varieties (like Kernza) to save the environment in this episode of BrainStuff.

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Although the term 'grandfathered in' is applied in many situations today, it originally referred to laws about voting rights. Learn the history of this phrase in today's episode of BrainStuff.

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Betta fish are popular aquarium pets, but there are a few common misconceptions about these beautiful critters. Learn how these 'fighting fish' can be peaceful and more in today's episode of BrainStuff.

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In 1920, before many women in the U.S. could even vote, a frontier town in Wyoming elected an all-women ticket into office. Learn about the Petticoat Rulers in today's episode of BrainStuff.

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