A strange tiny species of crustacean has challenged the way we think about natural selection and evolution. This microscopic animal, known as a water flea or Daphnia pulex, generates genetic variation ...

When evolution skeptics want to attack Darwin's theory, they often point to the human eye. How could something so complex, they argue, have developed through random mutations and natural selection, ...

New research challenges the one-level view of evolution, showing natural selection works on individuals and groups together.

For well over a century, Darwin’s theory of natural selection has served as biology’s grand unifying framework, explaining how species adapt and evolve through the differential replication of randomly ...

In 1858, English naturalists Charles Darwin and Alfred Russel Wallace independently reached the same groundbreaking conclusion — populations of living organisms change over time through natural ...