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Humans

Want to avoid mosquito bites? Step away from the beer

A Dutch music festival turned into a mosquito lab, revealing how beer, weed, sleep and sunscreen affect your bite appeal.

Planetary Science

Future Martians will need to breathe. It won’t be easy

Asteroid impacts, microbes, mining: These are a few tactics engineers might one day use to create an Earthlike atmosphere on Mars.

Animals

Octopus arms are adaptable but some are favored for particular jobs

Octopuses are ambidextrous, a new study finds, but they favor their front arms for investigating surroundings and their back arms for locomotion.

Paleontology

Crystallized dino eggs provide a peek into the tumultuous Late Cretaceous

Definitively dating the age of a clutch of fossil dinosaur eggs at a famous site in China may let scientists link eggshell features to environmental shifts at the time.