The Wolf and the Seven Little Kids by Jacob and Wilhelm Grimm

There was once on a time, an old Goat who had seven little Kids, and loved them with all the love of a mother for her children.

One day, she wanted to go into the forest and fetch some food. So she called all seven to her and said, "Dear Children, I have to go into the forest. Be on your guard against the Wolf. If he come in, he will devour you all -- skin, hair, and all. The wretch often disguises himself; but you will know him at once by his rough voice and his black feet."