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Could Shiny Pokémon Survive Natural Selection?

Shiny Pokémon are famous because they are rare. But rarity is not the same thing as adaptation. Using Red Gyarados, Caterpie, Spinda and other Gen 1–3 examples, this interactive guide separates Pokémon evolution from biological evolution.

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How to Make a Solar System Model That’s Actually to Scale

Most solar system models distort either planet sizes or distances. Use this interactive calculator to build a model for your desk, classroom, hallway or field—and understand exactly what your project is simplifying.