ANCHORAGE, Alaska — Inside a chilly enclosure, a 7-year-old peregrine falcon named Breland plucked at a frozen rat carcass with her beak, tearing off patches of fur and flesh with little head jerks until finally snatching up the complete pink tail.

Options include naming a feral cat after your old flame before it’s neutered — or giving rodents or cockroaches your love bug’s name before feeding them to bigger animals. The Minnesota Zoo’s campaign to name a bug after either a friend or a foe has attracted donors from across the world.