Evolution does repeat itself after all

For every two species of mammal there is one species of cichlid fish, which goes to show that biodiversity is distributed rather unevenly among animals. But why? And to what extent can evolution be predicted? A variety of ...

Living with volcanic gases

Professor Tamsin Mather, a volcanologist in Oxford's Department of Earth Sciences reflects on her many fieldwork experiences at Massaya volcano in Nicaragua, and what she has learned about how they effect the lives of the ...

Rover findings indicate stratified lake on ancient Mars

A long-lasting lake on ancient Mars provided stable environmental conditions that differed significantly from one part of the lake to another, according to a comprehensive look at findings from the first three-and-a-half ...

'Halos' discovered on Mars widen time frame for potential life

Lighter-toned bedrock that surrounds fractures and comprises high concentrations of silica—called "halos"—has been found in Gale crater on Mars, indicating that the planet had liquid water much longer than previously ...

Evolutionary split up without geographic barriers

A fundamental question in evolutionary research is: is a geographic barrier dividing the original population into two genetically separated populations required for the origin of new species? Or is so-called sympatric speciation ...

Pockmarks on the lake bed

An unusual and unexpected discovery: on the floor of Lake Neuchâtel, geologists have happened upon huge underwater craters—some of the largest in the world to be found in lakes. They are not volcanic in origin, but were ...

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