Two male African elephants born at the San Diego Zoo Safari Park—Emanti and eMacembe LaLu Hlata, better known as “Mac”—are now residing at the Caldwell Zoo in Tyler, Texas.

This week, 100Kin10—a national network with a goal of training and retaining 100,000 excellent K–12 science, technology, engineering and math (STEM) teachers by 2021—announced a key milestone during the organization’s annual partner summit at the San Diego Zoo: