Washington University in St. Louis

How repeatable is evolutionary history?

Writing about the weird soft-bodied fossils found in the Burgess Shale in the Canadian Rockies, paleontologist Stephen Jay Gould noted that of 25 initial body plans exhibited by the fossils, all but four ...

Jun 23, 2014
4.1 / 5 (18) 71

Microbes buy low and sell high

The idea that people make calculated decisions that allow them to obtain the most goods with the smallest amount of effort—a complex hypothesis called 'economic man' for short—often has been challenged. ...

Jan 13, 2014
4.2 / 5 (12) 0 | with audio podcast

Scientists stitch up photosynthetic megacomplex

When sunlight strikes a photosynthesizing organism, energy flashes between proteins just beneath its surface until it is trapped as separated electric charges. Improbable as it may seem these tiny hits of ...

Nov 28, 2013
4.3 / 5 (11) 0 | with audio podcast