Go, Baby! These Animal Babies Grow Up Without Any Help From Parents

Why some offspring are left to fend for themselves from day one.

We all need a push once in a while—but hopefully it’s not a literal one.

WAQ reader Hannah wrote in asking, “Do mother birds push their babies out of the nest?”

Hannah’s question made us wonder: What brave offspring do get pushed out into the world before they feel they're ready?

Most birds receive parental care (March of the Penguins, anyone?), but megapodes—a group of chicken-like birds native to eastern Australia, New Guinea, Indonesia, and the Philippines—are a big exception.

These birds “do not even directly incubate their eggs,” Roby says. Instead “they build a large mound of decaying vegetation and lay their eggs in the mound.”

According to The Handbook of Bird Biology, the mounds can be “the size of

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