Who wouldn’t be thrilled to see a real, live dinosaur, like those in Michael Crichton’s Jurassic Park? Readers find out if it is possible to bring extinct animals back to life. This book delves into the science behind attempts to revive extinct species through processes such as cloning and genetic engineering, and compares actual with fictional efforts. It looks at how scientists have gone about trying to revive extinct species, such as the quagga, woolly mammoth, and passenger pigeon. It also considers the ethics and the ecological effects of trying to revive an extinct species and introduce it to a modern-day ecosystem.