WASHINGTON – Loren Brey, a poultry grower in Minnesota, walked onto the farm where his egg-laying turkeys nest in November to discover a handful of hens dead from the highly pathogenic avian flu.

“When you have sound, the dingoes will flinch. They’re a bit nervous but they don’t run away. But the wavy man, boy, they bolted," animal behavior researcher Bradley Smith tells Science magazine.