Black carp, however, have the potential to eradicate native snails and displace native fish. To protect both fish farmers and biological diversity, the Conservation Department plans to grow sterile black carp in its hatcheries and sell them to fish farmers at cost. All fertile black carp in the state will be destroyed to eliminate the danger of black carp escaping and establishing themselves in Missouri water. The ultimate solution will be finding alternate methods for snail control so the Conservation Department can get out of the black carp business. Wonderment Imagine ramming your face into a tree at 16 mph.
Woodpeckers do it thousands of times a day.
The shocks, say the authors, are distributed over a larger surface area relative to brain mass. They also note that striking wood head-on reduces hazardous rotational and shearing forces. In addition, woodpeckers, like most birds, possess little cerebrospinal fluid that would transmit dangerous shock waves. Furthermore, say the experts, some of the muscles attached to the beak are thought to serve as shock absorbers. And because woodpeckers' brains are situated above the level of their beaks, much of the shock can be transmitted past the brain into the neck.