Notebook

Animals

New worm-snail is a super slimer

New worm-snail species shoots snot to snag a snack.

Earth

Whirlwinds of crystals called gravel devils spotted in Andes Mountains

Large whirlwinds in northern Chile can carry gravel-sized gypsum crystals several kilometers before dumping them in mounds.

Health & Medicine

50 years ago, contraception options focused on women

Women have more birth control choices than they did 50 years ago. The same can’t be said for men.

Materials Science

Bone-inspired steel cracks less under pressure

Steel that’s structured like bone resists cracks better that the traditional form of the heavy-duty building material.