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Ecosystems

This seagrass is taking over the Chesapeake Bay. That’s good and bad news

Higher water temperatures are wiping out eelgrass in the Chesapeake Bay and weedy widgeongrass is expanding. Here’s why that seagrass change matters.

Health & Medicine

50 years ago, scientists thought coffee might treat hyperactivity

Decades of follow-up research into whether caffeine can treat the symptoms of kids with ADHD has come up with more questions than answers.

Paleontology

This ancient, Lovecraftian apex predator chased and pierced soft prey

Half a billion years ago, Anomalocaris canadensis probably used its bizarre headgear to reach out and snag soft prey with its spiky clutches.