Origin and evolution of life

A newly-discovered species of ant supports a controversial theory of species formation.

At a recent event held at NASA headquarters, a panel of scientists discussed how our knowledge of ancient Earth can help guide our search for life elsewhere.

Worm-like creature with legs and spikes finds its place in the evolutionary tree of life

New findings suggest that the first living cell had a 'leaky' membrane, allowing it to be powered by energy in its surroundings, while holding in other components necessary for life.

A study of the diversity of radiolarian fossils paints a picture of the world's most lethal mass extinction.

Re-examination of birdlike fossil challenges common belief that birds evolved from ground-dwelling dinosaurs.

Virginia Tech researchers discover which genetic changes pass the test of extremely different ecologies

The theory suggests that cancer forms when recently evolved genes are damaged, and cells have to revert to using older, inappropriate genetic pathways.

Modern humans emerged from a complex 'labyrinth of biology and peoples,' findings suggest

A discovery in green alga Volvox carteri shows how male and female sexes have evolved from a more primitive mating system in a single-celled relative.