A new study shows evidence of “evolutionary rescue”—a kind of rapid evolution in which organisms genetically adapt to severe ...

The origin of organisms with complex cells, known as eukaryotes, is one of the most crucial parts of life’s evolutionary story. All animals, plants, and fungi are eukaryotes, and if complex cells had ...

The molecular clock theory posits that genetic changes happen steadily and gradually, offering a reliable means for peering into the past and theorizing when complex life first emerged. However, there ...

Using genetic discoveries based on modern bioluminescent organisms, scientists have estimated coral bioluminescence to have originated in the Cambrian period, about 540 million years ago. This finding ...

Professor of Evolutionary Palaeobiology at the Milner Centre for Evolution, University of Bath Depending upon how you do the counting, there are around 9 million species on Earth, from the simplest ...

PART 1: THE HISTORICAL FRAMEWORK: EVOLUTION AS SCIENCE: Before Darwin -- Darwin and natural selection -- The arguments and the evidence for evolution -- PART 2: ORIGINS: THE ENORMITY OF TIME: The ...

Why do you think giraffes have such long necks? It’s a question that has perplexed scientists for years. Do you think giraffes have long necks to reach food in high places? Maybe you are onto ...