DreamingNagual Posted June 4, 2009 http://www.abc.net.au/catalyst/stories/2583478.htm This is on ABC1 Now - 8:00PM Thursday 4th. Inca Trails - Dingos - Gouldian Finches (04/06/2009) Uncovering the ancient Inca roads of South America - Australia’s clandestine conservationist: the dingo! - Gouldian Finches choosing the sex of their chicks Inca Trails The Inca Empire could not have succeeded without good communications and good roads. Today a proposal for World Heritage Listing of the entire network has to be backed up by archaeological research. Dr Paul Willis sets out on the Inca Trail with a group of Australian archaeologists. Dingos Hidden away in the Blue Mountains a family of multicoloured dingos has been tagged with GPS satellite equipment. Jonica Newby ventures out bush to discover the truth about the secret life of our dingo. Gouldian Finches For the female Gouldian Finch, mating with a male of the wrong head colour is disastrous for her offspring - very few will reach sexual maturity. But scientists from Macquarie University have discovered an extraordinary defence. If forced into a mismatch, female Gouldians can “decide” the sex of their offspring, resulting in a higher survival rate. http://www.abc.net.au/catalyst/stories/2583478.htm Share this post Link to post Share on other sites
