Why does Bagheera take baby Mowgli the man cub to mama wolf and her family?

Bagheera does not take baby Mowgli to the wolves.... Father Wolf discovers Mowgli in the bushes.

The bushes rustled a little in the thicket, and Father Wolf dropped with his haunches under him, ready for his leap. Then, if you had been watching, you would have seen the most wonderful thing in the world—the wolf checked in mid-spring. He made his bound before he saw what it was he was jumping at, and then he tried to stop himself. The result was that he shot up straight into the air for four or five feet, landing almost where he left ground.

“Man!” he snapped. “A man’s cub. Look!”