ST. LOUIS (AP) -- Crazy carp have invaded Missouri's rivers. Two species of nonnative carp have been jumping into boats, injuring occupants and damaging the watercraft. A state fisheries biologist motoring near Columbia had a filling knocked out of his tooth by a high-flying fish that struck him on the side of the head. Another state biologist in the St. Charles area was seriously hurt when he was hit by a giant carp. Brian Todd of the Missouri Department of Conservation said the big head carp and silver carp were brought to private fish hatcheries from Asia by the aquaculture...