A new study theorizes that evolution ticks at different speeds, especially when a big group of organisms first appears.

Sponges are among Earth's most ancient animals, but exactly when they evolved has long puzzled scientists. Genetic ...

In five cases where vertebrates evolved monogamy, the same changes in gene expression occurred each time. In many non-monogamous species, females provide all or most of the offspring care. In ...

Scientists at Nagoya University in Japan have identified the genes that allow an organism to switch between living as single ...

Evolution is a continuous, powerful force shaping the natural world around us. As environmental pressures intensify, future animal evolution is likely to produce fascinating and sometimes bizarre new ...

A reduced genome in an island species raises evolutionary questions.

The oldest fossilised remains of complex animals appear suddenly in the fossil record, and as if from nowhere, in rocks that ...

Researchers study house sparrow genetics to understand survival, evolution, and how species respond to environmental change.

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? For years, scientists have split neoaves (which make up 95 percent of bird species) ...

A microorganism whose evolutionary roots can be traced to the era of the first multicellular animals may provide a glimpse of how single-celled organisms made a critical evolutionary leap. In ...