Two recent papers explore how and why humans started hanging out with wolves Jet is many things. He’s my canine companion, raider of the trash, mail watchdog, irrepressible sniffer of faces, and a second alarm clock. Each morning when he hears Survivor’s “Eye of the Tiger” play as my phone alarm, he wags his tail with a thump against the wall, and then (with permission) jumps up on the bed. It was during one such moment, pinned in place by about 75 pounds of German shep