An 8-year-old-boy living in the UK was nicknamed “Jaws” by his friends in school after developing a second set of teeth. The kid has a condition also known as “shark teeth” which means he has an extra set of teeth. This happened because the boy hasn’t lost his milk teeth despite having nearly a full set of adult teeth behind them. Instead of his adult teeth pushing his baby teeth out, they grew in behind. Until his milk teeth start falling down, Zak Brown needs to spend twice more time brushing his two sets of teeth.