Birds Large and Small Sniff Their Way Through Life
[dropcap]I[/dropcap]n the 1820s, painter and naturalist John James Audubon designed an experiment to test if birds had a sense of smell. He dragged a rotten hog carcass into a field, then piled brush on top of it. After none of the local turkey vultures appeared, Audubon concluded that vultures hunted using their eyes alone. […]