A dispatch from Valerie Weihman-Rock, keeper of now 40 mulefoots, and a keen observer of porcine behavior:
"Dee Dee had seven babies last week. All white footed. Crystal had three, so I gave one of Dee Dee's to her. They gave birth within an hour of each other! All doing fine. Cute how the moms tuck the babies into a straw nest before walking off to poo, then coming back, uncovering them, grunting to call them to her and carefully lying down for them."
Speaking of poo, it's a worldwide problem. But there are some solutions. One is simply to convince people to eat less meat.