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- Fuzzy future: Kids may suffer impaired vision from spending too little time outdoors, studies suggest
- Building with moon rocks: Working on the moon with lunar soil and grit could prove easier, more efficient and less costly than using earthly materials
- Major twister hits Oklahoma: Its speed, which largely determines the damage it causes, is still unknown
SWITCH TO SCARLET
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| In areas where the annual phlox’s range overlaps with that of a close relative, the phlox’s color switches from light purple to scarlet. This shift — driven by two yet-to-be-identified genes — appears to prevent interbreeding with the pointed phlox relative (also a light purple color).
Credit: Map: geoatlas/graphi-ogre, graphic: Janel Kiley
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