News tagged with natural selection

Butterfly mimicry through the eyes of bird predators

In the natural world, mimicry isn't entertainment; it's a deadly serious game spanning a range of senses - sight, smell and hearing. Some of the most striking visual mimics are butterflies. Many butterflies become noxious ...

dateNov 05, 2015 in Evolution
shares114 comments 0

Researchers discover size gene for salmon

The size of returning Atlantic salmon is largely dependent on the number of years that the salmon remains at sea before returning to spawn in the river. The genetic basis of this trait has not been previously known, making ...

dateNov 04, 2015 in Biotechnology
shares92 comments 0

Size matters—the more DNA the better

A new study from researchers at Uppsala University shows that variation in genome size may be much more important than previously believed. It is clear that, at least sometimes, a large genome is a good genome.

dateSep 14, 2015 in Biotechnology
shares123 comments 3