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evolution

evolution

Ancient Survivors Could Redefine Sex

Microscopic creatures called bdelloid rotifers have thrived without mating for millions of years. How they did it could reveal why sex is so essential for almost everyone else.

biology

Elusive Form of Evolution Seen in Spiders

A study of diverse colonies of spiders supports a controversial idea in evolution — that natural selection can act on communities as well as on individuals.

Ships Docking
ecology

Lizard Stowaways Revise Principle of Ecology

The movement of lizards around the Caribbean is forcing researchers to account for human activity in even their most basic ecological models.

Yeast
evolution

Evolution’s Random Paths Lead to One Place

A massive statistical study suggests that even though genetic changes happen at random, the final evolutionary outcome — fitness — is predictable.

Melpomene
genetics

As Animals Mingle, a Baffling Genetic Barrier

Despite swapping DNA through interbreeding, butterflies and other animals can maintain distinct species.

Multicellularity
evolution

Where Animals Come From

Bacteria may have helped single-celled organisms make the leap to multicellular animals.

Biology

The New Science of Evolutionary Forecasting

Newly discovered patterns in evolution may help scientists make accurate short-term predictions.

origins of life

Hints of Life’s Start Found in a Giant Virus

Newly discovered specimens support a more ancient origin for viruses, perhaps all the way back to the origins of life.

evolution

The Game Theory of Life

An insight borrowed from computer science suggests that evolution values both fitness and diversity.