When thousands of animals die during mass migrations, ecosystems accommodate the corpses and new cycles are set in motion.

Mitochondrial DNA in Neanderthal bone suggests humans first left Africa earlier than previously thought.

In laboratory experiments that simulated oceanic conditions, the fish responded to magnetic fields, a sensory input that may aid migration.

A mysterious migration is coming to light after more than a century of study.

Researchers are using high-tech solutions to bring the lifecycle of the European eel into sharper focus.

A round-up of recent discoveries in behavior research

Researchers have determined that a diminutive insect out-flies all other winged migrators by traveling thousands of miles between continents and across oceans yearly.

The iconic butterflies have flocked to their Mexican overwintering grounds, seemingly reversing recent population declines.

January 2016's selection of notable quotes

The genomes of a 5,200-year-old woman and three 4,000-year-old men yield clues about the founding of Celtic populations.