DNA shines a light back into the past, showing us things that fossils can't. But how far back can that light extend? Some of the oldest DNA sequences come from mastodon and polar bear fossils about 50 ...

Arabidopsis thaliana was always an unlikely candidate for the limelight. But 25 years ago, the diminutive thale cress ...

The theory of evolution by natural selection was first formulated in Darwin’s book “On the Origin of Species” in 1859. It ...

The genetic link between bones discovered thousands of miles away from each other suggests a prehistoric migration route.

In 1861, the naturalist was acting in his role as a concerned father, seeking a respectable position for his son, William ...