Mapping evolution

Mapping evolution

Research in salty ponds shows how one species of pupfish becomes three — in a few cases. More important, it shows why this did not happen in thousands of other locations. Does an impenetrable “death valley” isolate viable species? More »

Tracking traveling toads

Tracking traveling toads
Do new species arise because so many niches are available in a new habitat? Or do they arise because newcomers have multiple talents for survival? A new study points to traits that enable success in the new location. More »

Fish prove: The eyes have it!

The color, vision and genetics of an African fish all vary depending on the clarity of its home waters. A new study suggests how species can form without geographic barriers. More »