The Sierra Club and the US Forest Service were presenting an alternative to Wyoming ranchers for controlling the coyote population. It seems that after years of the ranchers using the tried and true methods of shooting and/or trapping the predator, the naturalists had a "more humane" solution. What ...
A group of naturalists found hundreds of dead crows near highways. They began investigating.
They brought an Ornithologist in, who discovered that 90% had been killed by trucks. After some study, they figured out that it was because the crows could say "Caw!" but not "Truck!"