Animals
Analyze This: How sea slugs get their flashy colors
Crystals beneath the skin of nudibranchs, also called sea slugs, allow the creatures to make an array of intense hues with just one material.
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Earth
Scientists Say: Fjord
These dramatic, steep-sided sea inlets form when glaciers carve deep channels from the terrain.
Experiment
Physics
Experiment: Measure fake blood spatter
Future forensic scientists, get out your corn syrup and red food coloring! It’s time to fake a crime scene.
Technically Fiction
Earth
Could a storm last forever?
Thunderstorms help fix imbalances found in our atmosphere. For constant storms, those imbalances would have to persist.
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Watch This
Explainer: What are corals?
Though they can look like rocks or plants, corals are animals. Most are made up of colonies of individuals called polyps.
