Molecular evolutionary biologist Masatoshi Nei says Darwin never proved natural selection is the driving force of evolution — because it isn't. In a cavernous concert hall, before an eager audience of ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A strange tiny species of crustacean has challenged the way we think ...

In new research, Arizona State University scientists and their colleagues investigated genetic changes occurring in a naturally isolated population of the water flea, Daphnia pulex. This tiny ...

Finding a place for "chance" in evolutionWhen we encounter the forms and mechanisms of living things, we ask, "What is the use of this?" Bird wings are useful for flying, and fish gills are useful for ...

Many people are familiar with the concept of natural selection and “survival of the fittest.” While modern humans may look like they’ve been at their “fittest” for hundreds of thousands of years, new ...

Introduction. Definition of natural selection ; Relationship to genetic drift and evolution ; Restricted meanings of "natural selection" ; Modes of selection ; Summary -- Philosophical comments.

Most of us know that as living things evolve, they take on traits that help them thrive in their home environments. But how are certain traits "chosen" for future generations, and how are others cast ...

When most people think about natural selection, they imagine individuals competing with one another: The fastest animal escapes predators, the strongest plant produces more seeds, and the most ...

The whole world could soon be seeing red. Instead of being the punchline, redheads will have the last laugh, as a new study reports that humans have been constantly evolving to have flame-colored hair ...

Between 1831 and 1836, Charles Darwin circumnavigated the globe as the naturalist for the renowned HMS Beagle. Darwin's task, as far as Britain was concerned, was to discover and describe flora and ...