Physics
How polarized and UV-blocking sunglasses protect our eyes
Their filters can cut glare to help us see more clearly. The best ones also filter out the sun’s UV rays — even on cloudy days — to limit eye damage.
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Animals
Scientists Say: Kleptopredation
It’s a hunter-eat-hunter world out there, and this feeding strategy gives some double-dipping predators a competitive edge.
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Animals
Analyze This: Moving frogs to new places helped an endangered species spread
Frogs resistant to a deadly fungus jump-started populations in these new areas.
Experiments
Math
Experiment: M&M’S geometry
The amount of candy in an M&M’S bag is never enough, but just how much is it? Let’s find out which geometric formula gives the best estimate.
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The ‘bone collector’ caterpillar wears its prey as camouflage
For months, the caterpillar scavenges spider webs for scrapped insect body parts to cover its protective case. Later, that case will serve as its cocoon.
