up to into the air. Boaters traveling in uncovered high-speed watercraft have been reported to be injured by running into airborne fish while at speed. A leaping silver carp broke the jaw of a teenager being pulled on an inner tube, and water skiing in areas where silver carp are present is extremely dangerous. Peculiarly, the extreme jumping behavior appears to be unique to silver carp of North America; those in their native Asian range and introduced to other parts of the world are much less prone to jumping. Although theories have been proposed (for example, the high densities the species reaches in parts of North America, or that the introduced North American population may have been based on a small number of particularly "jumpy" individuals), the reason for these geographic differences is not known for certain. References External links Species Profile - Silver Carp (Hypophthalmichthys molitrix), National Invasive Species Information Center, United States National Agricultural Library lists general information and resources for silver carp. Facts About Invasive Bighead and Silver Carps, United States Geological Survey Asian Carps of the Genus Hypophthalmichthys (Pisces, Cyprinidae) ― A Biological Synopsis and Environmental Risk Assessment Carp Hypophthalmichthys Commercial fish Sport fish Freshwater fish of China Fish of East Asia Fish of Bangladesh Taxa named by Achille Valenciennes Fish described in 1845 Cyprinid fish of Asia