Transcription: Until relatively recently, in the evolutionary scale of things, the wildlife of New Zealand consisted of almost nothing but birds. Only birds could reach the place. The ancestors of many of the birds that are now natives of New Zealand originally flew there. There were also a couple of species of bats, which are mammals, but, and this is the point, there were no predators, no dogs, no cats, no ferrets or weasels, nothing that the birds needed to escape from particularly. And flight, of course, is a means of escape. survival mechanism and one that some of the birds of New Zealand found they did ...