Christopher Joyce http://wdiy.org en Dance Of Human Evolution Was Herky-Jerky, Fossils Suggest http://wdiy.org/post/dance-human-evolution-was-herky-jerky-fossils-suggest A trio of anthropologists has decided it's time to rewrite the story of human evolution.<p>That narrative has always been a work in progress, because almost every time scientists dig up a new fossil bone or a stone tool, it adds a new twist to the story. Discoveries lead to new arguments over the details of how we became who we are.<p>But anthropologists generally agree on this much: A little more than 2 million years ago in Africa, the human lineage emerged. Fri, 04 Jul 2014 07:37:00 +0000 Christopher Joyce 43154 at http://wdiy.org Dance Of Human Evolution Was Herky-Jerky, Fossils Suggest Maybe Dinosaurs Were A Coldblooded, Warmblooded Mix http://wdiy.org/post/maybe-dinosaurs-were-cold-blooded-warm-blooded-mix If you go to a zoo on a cold day and watch the snakes, you'll see what it means to be <a href="http://coolcosmos.ipac.caltech.edu/image_galleries/ir_zoo/coldwarm.html">coldblooded</a>. Not much action going on — most reptiles and other coldblooded creatures take on the temperature of their surroundings, so they tend to be most sluggish when the outside temperature is cool. The monkeys, however, act like they've had one too many cappuccinos. Thu, 12 Jun 2014 18:03:00 +0000 Christopher Joyce 41856 at http://wdiy.org Maybe Dinosaurs Were A Coldblooded, Warmblooded Mix Spiders Tune In To Web's Music To Size Up Meals And Mates http://wdiy.org/post/spiders-tune-webs-music-size-meals-and-mates <p>http://www.youtube.com/watch?v=0EkEsTafD38</p><p>http://www.youtube.com/watch?v=Kjh7bQSc8ag</p> Tue, 10 Jun 2014 07:48:00 +0000 Christopher Joyce 41684 at http://wdiy.org Spiders Tune In To Web's Music To Size Up Meals And Mates Scientists Find Africa's Longest Land Migration: Zebras' 350-Mile Trek http://wdiy.org/post/scientists-find-africas-longest-migration-zebras-350-mile-trek Wildlife biologists have discovered the longest known terrestrial migration in Africa: some 350 miles across southern Africa by huge herds of zebras. Large mammal migration in Africa has generally been hindered by the subdivision and fencing of land. However, this one remains possible because it takes place in a unique, multi-country wildlife corridor. <div class="fullattribution">Copyright 2014 NPR. Thu, 29 May 2014 21:16:00 +0000 Christopher Joyce 41108 at http://wdiy.org Hybrid Trout Threaten Montana's Native Cutthroats http://wdiy.org/post/hybrid-trout-threaten-montanas-native-cutthroats Many parts of the U.S. have been getting warmer over the past several decades, and also experiencing persistent drought. Wildlife often can't adjust. Among the species that are struggling is one of the American West's most highly prized fish — the <a href="http://www.nrmsc.usgs.gov/research/WCT">cutthroat trout</a>.<p>In springtime, you can find young cutthroats in the tiny streams of Montana's Shields Basin. Tue, 27 May 2014 21:09:00 +0000 Christopher Joyce 40958 at http://wdiy.org Hybrid Trout Threaten Montana's Native Cutthroats Former Commando Turns Conservationist To Save Elephants Of Dzanga Bai http://wdiy.org/post/former-commando-turns-conservationist-save-elephants-dzanga-bai <p>http://www.youtube.com/watch?v=5kGVqDmYZhI</p> Fri, 09 May 2014 07:34:00 +0000 Christopher Joyce 39851 at http://wdiy.org Former Commando Turns Conservationist To Save Elephants Of Dzanga Bai Civil War Invades An Elephant Sanctuary: One Researcher's Escape http://wdiy.org/post/civil-war-invades-elephant-sanctuary-one-researchers-escape Ivory poachers are killing some 22,000 African elephants a year. Among the recent casualties was a group of rare <a href="http://www.birds.cornell.edu/brp/elephant/cyclotis/cyclotis.html">forest elephants</a> in the Central African Republic.<p>Those elephants were featured in an NPR program, Radio Expeditions, in 2002, when former NPR host and correspondent Alex Chadwick and sound engineer Bill McQuay went to central Africa to <a href="http://blog.allaboutbirds.org/2014/05/07/elephant-npr-sounds-video/">record them</a>.<p>The Central African Republic was peaceful back then. Thu, 08 May 2014 13:55:00 +0000 Christopher Joyce 39797 at http://wdiy.org Civil War Invades An Elephant Sanctuary: One Researcher's Escape A T. Rex Treks To Washington For A Shot At Fame http://wdiy.org/post/t-rex-reveal-itself-smithsonian This week, scientists at the Smithsonian's National Museum of Natural History will start unpacking some rare and precious cargo. It's something the Smithsonian has never had before — a nearly complete skeleton of a Tyrannosaurus rex.<p>Most people don't know it, but the T. rex that's standing tall in the Natural History Museum in Washington, D.C., is a fake — a cast, a copy of the bones. It's an accurate replica, but for decades the Smithsonian has coveted a real skeleton of a T. Wed, 16 Apr 2014 07:43:00 +0000 Christopher Joyce 38465 at http://wdiy.org A T. Rex Treks To Washington For A Shot At Fame Methane-Producing Microbes Caused 'The Great Dying' http://wdiy.org/post/methane-producing-microbes-caused-great-dying Transcript <p>STEVE INSKEEP, HOST: <p>It's MORNING EDITION from NPR News. I'm Steve Inskeep.<p>DAVID GREENE, HOST: <p>And I'm David Greene. Good morning. The biggest extinction the Earth has ever seen took place 250 million years ago and it remains something of a mystery. Scientists suspected giant volcanoes or perhaps an asteroid caused it, but NPR's Christopher Joyce has seen new research suggesting the cause might not have been so cataclysmic - maybe something much more subtle.<p>CHRISTOPHER JOYCE, BYLINE: It's sometimes called the Great Dying. Tue, 01 Apr 2014 11:00:00 +0000 Christopher Joyce 37603 at http://wdiy.org The 500-Pound 'Chicken From Hell' Likely Ate Whatever It Wanted http://wdiy.org/post/500-pound-chicken-hell-likely-ate-whatever-it-wanted For the past decade, dinosaur scientists have been puzzling over a set of fossil bones they variously describe as weird and bizarre. Thu, 20 Mar 2014 08:31:00 +0000 Christopher Joyce 36918 at http://wdiy.org The 500-Pound 'Chicken From Hell' Likely Ate Whatever It Wanted