Treehugger has a list of 10 creatures that can grow back body parts that includes the skink, a type of lizard that can shed its tail on command:
They can't walk upright, but they can release their tail at will. If a predator tries to attack from behind, the tail detaches and keeps wiggling while the skink scurries away, according to the Missouri Department of Conservation. The skink can grow a new tail in three to four months. Alas, they are never "as colorful or elegant as the original," the agency says.
Image by eFungus