Animals
Analyze This: Shimmering colors may help beetles hide
Delve into data showing how brilliant colors that shift as a viewer — or predator — moves may help iridescent insects blend in.
HS-LS4-3
Apply concepts of statistics and probability to support explanations that organisms with an advantageous heritable trait tend to increase in proportion to organisms lacking this trait.
More Stories in HS-LS4-3
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AnimalsBlood vessels in their heads kept big dinos from overheating
Giant dinosaurs evolved several ways to cool their blood and avoid heatstroke.
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GeneticsPacific islanders got a double dose of Stone Age DNA
Unlike other people, certain Pacific Islanders inherited DNA from two ancient human ‘cousins.’
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EarthBubbles may have sheltered Earth’s early life
For Earth’s earliest inhabitants, a bubble on the beach would have been the next best thing to a safety blanket.
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AnimalsWolves beat dogs at problem-solving test
When treats are at stake, wolves outperformed dogs at opening a closed container. The dog’s relationship with humans may explain why.
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Health & MedicineChikungunya wings its way north — on mosquitoes
A mosquito-borne virus once found only in the tropics has adapted to survive in mosquitoes in cooler places, such as Europe and North America.
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PhysicsEyelashes: The ‘sweet’ length
New mathematical and aerodynamics studies find what seems to be the optimal length for eyelashes — the length that protects best. And surprise: Longer is not always better.
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LifeCaught in the act
Scientists observe some evolutionary speed demons as they adapt over the course of just a few years to new environmental conditions.