![]() In this adapt-or-die world, the crucial innovation proved to be jet propulsion. And so began an arms race between the shelled krakens and the bony upstarts: fish evolved teeth to crack the shells of their prey, while those prey thickened their protective shells. Through her words, we learn how evolution of a buoyant shell gave ammonites, nautiluses and their early kin the ability to rise off the sea floor and become fearsome predators, only to find themselves prey to jawed fish. ![]() Staaf compares how both the “terrible lizards” and the “head-footed” cephalopods evolved, diversified and ate their way through their ancestors, then mostly perished in the hostile conditions at the end of the Cretaceous period, 66 million years ago. Anyone beguiled by dinosaurs will probably find Squid Empire irresistible. ![]()
0 Comments
Leave a Reply. |