 whose impressive jump allows them to navigate the trees and the wild in search of fruit. This remarkable work ethic is shared by our best friends, the canines. We know dogs are our wonderful pets at home, but because of their acute senses, they also perform life-saving work every day. Dogs keep us safe at airports. They comfort returning veterans, some of whom suffer from PTS. They work with diabetics, alerting them when there's a change in their blood chemistry.