Presented by Explo.TV http://www.exploratorium.edu/webcasts/index.php Fri, 21 Nov 2008 00:30:00 +0100 FeedCreator 1.7.2-ppt (info@mypapit.net) http://www.exploratorium.edu/webcasts/images/logos/explo_tv_small.jpg http://www.exploratorium.edu/webcasts/index.php Feed provided Explo.TV. Click to visit. http://www.exploratorium.edu/webcasts/archive.php?project=22 A special type of genetic material called mitochondrial DNA gets passed directly from mother to child. Largely unchanged from generation to generation, this genetic material gives researchers a way to track populations back in time. Fri, 21 Nov 2008 08:30:00 +0100 http://www.exploratorium.edu/webcasts/archive.php?project=22 Ed Green discusses the key questions researchers hope to answer by analyzing the Neanderthal genome. Fri, 21 Nov 2008 08:30:00 +0100 http://www.exploratorium.edu/webcasts/archive.php?project=22 Tanya Smith explains that invisible microstructure inside teeth creates a durable record of life history, including events such as birth, illness, famine, stress, and death. Fri, 21 Nov 2008 08:30:00 +0100 http://www.exploratorium.edu/webcasts/archive.php?project=22 Anthropologist Jean-Jacques Hublin explains that unlike teeth, bones undergo a lifelong process called remodeling, in which they are constantly being destroyed and recreated. Fri, 21 Nov 2008 08:30:00 +0100 http://www.exploratorium.edu/webcasts/archive.php?project=22 Philipp Gunz explains the process of virtual fossil reconstruction, a technique that can reverse the damage done to fossils by time and the elements. Fri, 21 Nov 2008 08:30:00 +0100 http://www.exploratorium.edu/webcasts/archive.php?project=22 Anthropologist Katarina Harvati explains the rare convergence of circumstances that are necessary for the discovery of a fossil specimen. Fri, 21 Nov 2008 08:30:00 +0100 http://www.exploratorium.edu/webcasts/archive.php?project=22 Anthropologist Jean-Jacques Hublin discusses the role of conflict and argument in the scientific process. Fri, 21 Nov 2008 08:30:00 +0100 http://www.exploratorium.edu/webcasts/archive.php?project=11 In this zany competition teachers have ten minutes to create a science activity from a special secret ingredient. The ingredient this time will be related to Halloween! Join us for some spooky fun! Fri, 21 Nov 2008 08:30:00 +0100 http://www.exploratorium.edu/webcasts/archive.php?project=22 Evolutionary geneticist Svante Pääbo explains that analysis of ancient Neanderthal DNA is very tricky work, thanks to fragmentation and contamination of genetic material. Fri, 21 Nov 2008 08:30:00 +0100 http://www.exploratorium.edu/webcasts/archive.php?project=22 Is a single gene, FOXP2, the secret to human speech? Researchers discuss the genetic underpinnings of speech and language. Fri, 21 Nov 2008 08:30:00 +0100