South African scientists are working to resurrect the quagga, a sub-species of zebra that was hunted into extinction by colonialists. Quaggas look like a cross between a horse and a zebra but they don’t have any stripes. So the scientists have spent decades breeding the stripes away in zebras and their project is almost complete. “We now have a total population of over 100 animals within the Quagga Project,” says March Turnbull, the project coordinator. Large herds of quagga were still roaming South Africa’s steppes at the end of the 17th century. But they were exterminated by European settler…