Variants of obesity-related genes influence how much weight patients lose on specific weight loss drugs like liraglutide, two studies report.

From jury duty to tax audits, randomness plays a big role. Scientists used quantum physics to build a system that ensures those number draws can’t be gamed.

A new study of more than 2,500 children under 5 found little difference in autism symptoms between boys and girls.

Most spider species subdue dinner by injecting venom from their fangs. Feather-legged lace weavers swathe prey in silk, then upchuck a killing brew.