who replaced my baby with a lion cub?

Last night around 9 PM I was feeding Evie who was in a particularly voracious mood. She was eating vigorously with both hands balled up beside her mouth, kind of like a lion cub who just learned to eat gazelle carcass on its own for the first time. I took her off for a second and she shook her head rapidly back and forth, snorted (which sounded more like a growl to me) and latched back on.