SHARKS PB

Sharks have evolved over 450 million years to become one of nature's supreme predators. Though many people regard sharks as killing machines, the 390 known species exhibit an astonishing variety of characteristics and behaviors.

Michael Bright presents an illuminating look at sharks, basing his information on the latest findings from researchers around the world. He explains sharks' extraordinary array of advanced sensory equipment, including their ability to detect electrical fields from the muscular activity of prey hiding under sand or gravel. Some species exhibit remarkable social behaviors, communicating not only through sounds but also with movements and postures. Tiger sharks have been known to eat many bizarre things, including deer antlers, a roll of chicken wire, explosives, and even a bag of money.

Because only a handful of countries have fisheries management plans, sharks are now under threat. More than 150 million are slaughtered each year, primarily for shark fin soup, a delicacy that costs up to $150 per bowl. The information presented here dispels the common misconceptions about sharks and points the way to ensuring their future.