Today in 1984, scientists at U.C. Berkley successfully cloned small bits of quagga DNA from preserved skin.  It went extinct 100 years prior. While this hasn't led to the species being revitalized (yet), the cloned samples led to many new discoveries about the quagga, such as it being a subspecies of zebra (it was previously thought to have been its own species).   Image Credit: The Quagga Project