Brown rats in New York City may be evolving smaller rows of teeth. Tiny fish across the Eastern US have adapted to thrive in polluted urban waters. Around the globe, living things are evolving ...

Why do giraffes have long necks? Answers to 25 animal evolution questions | Evolution is driven by interactions between genetics and nature, and the Earth’s rock layers preserve a record of this ...

Two novel hypotheses have been proposed that address the “two-fold cost of sex”: one of the biggest enigmas in the evolution of sexual reproduction. The evolution of sexual reproduction in living ...

"Intelligent design theory" is built on the belief that evolution does not sufficiently explain the complexity that exists in life on Earth and that science should recognize the existence of an ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American More than a century and a half after Charles ...

One important use of questioning is to facilitate student thinking about and discussion of science. Asking the right question at the right time can help a student clarify his or her thoughts, ...

About a billion years after the Earth formed, the first signs of life emerged. These were just single-celled microbes, but through billions of years of evolution, scientists think that one of these ...