The team are now investigating rates of evolution in these mammals, as well as looking at body size more specifically. (sciencedaily.com)
They compared the average rate of evolution over the geological stages before the extinction and the geological stages after to see what impact it had. (sciencedaily.com)
A rapidly changing climate may put sharks at risk, however, because their slow rate of evolution makes them «a bit slow to respond to acute climate change,» he said. (wxshift.com)