Latest Tomasz Baumiller Stories
A study by University of Michigan paleontologist Tomasz Baumiller and colleagues finds that sea urchins have been preying on marine animals known as crinoids for more than 200 million years and suggests that such interactions drove one type of crinoid---the sea lily---to develop the ability to escape by creeping along the ocean floor.
In the classic textbook example, predators and prey are locked in an escalating evolutionary arms race. As prey develop defenses against their attackers, predators go them one better, devising new ways of penetrating their victims' defenses.
- The abrogation of a law by a higher authority; annulment.