A teen-age boy snacking on dried, salted mopane worms near Lanseria, South Africa. Eaten dry the worms are hard, crispy, and woody tasting. The worms are so popular in South Africa that they have been over-harvested and are now only abundant in neighboring Botswana. "Mopane" refers to the mopane tree, which the caterpillar eats. Dried mopane worms have three times the protein content of beef and can be stored for many months. Image from the book project Man Eating Bugs: The Art and Science of Eating Insects.