Tuna are one of the ocean’s most important commercial fish, providing food for millions of people. Once endangered from overfishing, this species has been helped by sustainable fishing quotas.

Aging brings about a range of changes—often unwelcome—to our bodies: sagging skin, graying or thinning hair, and a decline in muscle strength and ...

From cancer-resistant mole rats to 200-year-old whales, evolution has equipped long-lived species with unique biological ...