WASHINGTON—Next week in Nashville, Tennessee, thousands of hunters will gather at Safari Club International’s annual convention, featuring over 850 exhibitors from more than 30 countries. More than half of these exhibitors will be hunting guides and outfitters peddling trophy hunts of the world’s...

Somewhere toward the end of the last ice age, we formed an alliance with wolves: Maybe the ancestors of dogs got food scraps while our own ancestors gained protection from predators and other humans. These social species eventually collaborated on a vast scale, possibly even hunting woolly mammoths...