An expert engineer builds our self-esteem by building a tool box, a shark expert shares freaky creatures from the deep, and a scientist uncovers the prehistoric giants hiding below one of Americas biggest cities. LaurDIY explains the science behind a chocolate shell you can make at home.

A mechanical engineer who teaches robots to dance, a carnivore ecologist who tracks bears, and a paleoanthropologist who studies the evolution of the human diet by looking at the markings on million-year-old bones! Dr. Brain explains the brain science behind softball.