natural selection, evolution

Ocean animals have been getting bigger over the millennia, according to an analysis of thousands of genera that have plied Earth’s seas since the Cambrian Period.

An online reconstruction makes the library from Darwin’s famed ship more accessible. 

Humans evolved the ability to walk on two legs because it allowed them to more accurately size up prospective mates. Or did they?

In Chapter 7, “The Way We Walk,” author Henry Gee describes the first steps taken by the ancestors of Homo sapiens.

Better health care in Gambian villages lead to flip-flopping selection pressures on height and weight.

A new study suggests that in the Spanish Habsburg royal family, natural selection may have diminished the most harmful effects of inbreeding.

It’s a well-known story: The peppered moth’s ancestral typica phenotype is white with dark speckles. 

An evolutionary biologist’s posthumous publication restores the peppered moth to its iconic status as a textbook example of evolution.

Research on an 18th and 19th century Finnish population suggests that agriculture and monogamy may not have stopped human evolution.

Zebras may have evolved their striped coat to avoid blood-sucking flies.

Using an artificial selection paradigm, researchers watch as unicellular yeast evolve into snowflake-like clusters with distinct multicellular characteristics.

Traits that help one sex but hurt the other are not sufficient for maintaining genetic variation.