Nancy Shute discusses which should scare you more: sharks or ticks and fungus — and why sharks might actually be the least of your worries.

Humans have driven sharks and their cousins to the brink of extinction. The health of the entire ocean is at stake.

Nutrition experts say add more greens and beans to your diet; cooking classes can teach people to make these nutrient-dense foods taste delicious.

Tiny, newly formed tumors shed small fragments of DNA that are swept into the bloodstream. Future cancer screening tests could detect them early.

Alix Morris’s new book, A Year with the Seals, explores humans’ complicated relationship with these controversial marine mammals.

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Layoffs at the FDA, USDA and CDC could erode the U.S. food safety system. Experts aren’t so worried about milk or chicken today; they’re concerned about the future.

This experimental paint reflects sunlight, emits heat and mimics sweating to cool buildings without air conditioning, even in the tropics.

Scientists suggest the missile defense plan will face big hurdles, especially given its projected timeline and cost.

Bogong moths migrate up to 1,000 kilometers from Australian plains to mountain caves to escape the summer heat. The stars may help them get there.

Concerts, fireworks and other hallmarks of summer can hurt your hearing long-term. But there are safe ways to enjoy them.

These explosions, called extreme nuclear transients, shine for longer than typical supernovas and get 30 to 1,000 times as bright.