Are all of your favorite animals extinct? Join the club. But there's good news for prehistoric fauna fans this month, in the form of an exciting new TED Talk by Steward Brand. Brand has been rustling some serious dino-feathers with his work in "de-extinction." The idea is not to create a Jurassic Park so much as a Pleistocene Park, and his associates are hard at work trying to bring back the Passenger Pigeon (pictured), which was one of the most numerous animals on the planet until humans developed a taste for it. Here's our top 10 list of other recently extinct animals we'd like to see back on the planet again. Share yours too!