Multilevel selection is a controversial concept originally proposed by Darwin. A new study found evidence for it in the wild in a group of marmots scientists have been observing for more than 60 years.

A decade of fieldwork is revealing how one of biology’s fundamental principles works in real time.

Evolution is often depicted as a steady forward march from simple to complex forms. But new research shows that certain ferns can evolve ‘backward.’

A specific set of chemical conditions led to the emergence of life on Earth. But can life emerge from other chemistries?

Natural selection won’t keep pace with global warming if the Paris climate agreement isn’t realised.

Reduced to its essence, the process of natural selection would look a lot like play.

We may have become the most complex living creature in part by accident and replication of error.

Natural selection is usually understood in the context of change, but new findings suggest that natural selection also has the power to keep things the same.

Most of the males in a Puerto Rican monkey colony engaged in homosexual activity, a new study reveals.

A newborn bison calf in Yellowstone National Park had to be euthanized after a visitor handled it in May 2023 – a recent example of how trying to help wild animals often harms them.