It’s the Saturday before Easter weekend at Petland in Fairfax, Virginia. Sixteen baby bunnies sit in three open pens, all for sale. Two teenage girls reach into a pen, scoop one up, and plop down on the floor, squealing over its cuteness: “I need it!”

The rabbits are all very young. No adult rabbits are for sale here.

“What happens to the babies who grow up before they’re sold?” I ask a salesman. “The breeder picks them up,” he says.

“What does he do with them?”

“I don’t know.”

Rabbits are the third most popular pet in America, after cats and dogs, according to the Humane Society of the United States—and the third most abandoned. Most Americans have a sense of how long cats and