They look like baseballs and soccer balls. But they could reveal how the earliest known egg-laying organism developed from embryo to adulthood.

It is believed to be the only boat from this period discovered in the entire Mediterranean region.

Working parents think they leave it at the office, but kids know better.

Growth hormones have proven themselves good at growing something after all: joint pain, carpal tunnel syndrome, male breasts, glucose intolerance, diabetes and cancer.

Human-caused global warming is here, visible in the air, water and melting ice, and is destined to get much worse in the future, an authoritative global scientific report will warn next week.

Thousands of lesser flamingos died from malnutrition last year at Lake Bogoria, Kenya, scientists report.