What Colour Was T. Rex? - A Visual Ecologist Explains скачать в хорошем качестве

What Colour Was T. Rex? - A Visual Ecologist Explains

Please support the show on Patreon   / peoplearefish   Change of format today, Dr George Hancock explains the fantastic world of prehistoric visual ecology. Thumbnail art by Andy Frazer @DragonsOfWales for the boardgame Last Titans. For more from People are Fish:   / peoplearefish     / peoplearefish     / peoplearefishtok   What colour were DINOSAURS? This is one of the most fun, facinating and puzzling questions in all of paleontology, but there are clues. Looking at animals in the world today, we can see patterns of behaviour, camouflage and display colouration which can help guide us to understanding large Dinosaurs such as Tyranosaurus Rex a little bit better. We also can observe the fossil record and some fossilised colour pigments and melanosomes to not only know what colour SOME dinosaurs are (Like Psittacosaurus, Microraptor, Sinosauropteryx and more...) and see patterns in what colours and counter shading they have in the deep past and compare it to today. In this episode Elliott is joined by Dr George Hancock from the University of Exeter. He is a visual ecologist working on extant species ranging from birds to butterflies, but also has a passion for the prehistoric. Because of this he and Lindsay Kastroll who works on the Prehistoric Kingdom games (both met working on the Minecraft: Fossils and Archaeology Mod) have founded the CamoDinoProject, a toolbox to help work out what patterns would work best for different dinosaurs in different enviroments while also working as a science outreach tool for schools and universities. PLAY THE DEMO HERE: https://github.com/GeorgeHancock471/S... To use the demo made for SVP, follow the link. Download the .zip file from GitHub, extract the file and then navigate to the ImageJ.exe file contained within the folder/subfolder. Run ImageJ.exe and the game will launch. You can play one of two games, a how fast can you spot the velociraptor game (sneaky thief) or a which psittacosaurus do you think is best game (rankosaurus). Note 1, for each game you can choose a forest or a desert habitat. Note 2, to preview your results you must play atleast two generations. For more from George and the CamoDinoProject   / camodinoproject     / ghancockzoology   https://experts.exeter.ac.uk/36069-ge... https://www.researchgate.net/profile/... Chapters: 00:00:00 - Intro 00:03:13 - Could T.Rex Hide? 00:06:05 - Phylogentic Bracketing 00:07:00 - Fossilised Colours 00:08:15 - How does Camoflage Operate today? 00:09:36 - Background Matching 00:10:16 - Disruptive Patterns 00:11:43 - Countershading in the fossil record 00:13:52 - Mascurading Animals 00:15:10 - Sit and Wait Predators 00:18:08 - Babies are Vulnerable! 00:18:45 - How Birds vs Mammals see the World 00:20:21 - Birds (and Dinosaurs?) see UV colours 00:23:09 - Crocodilian & Nocturnal Colour Vision 00:24:21 - Dinosaurs had Diverse Vision 00:25:20 - Visual Acuity 00:27:19 - Colour Sensitivity 00:29:00 - Crocodile & Bird Camoflage 00:31:01 - Colour Changing with Age (Ontology) 00:32:19 - Sexual Dimorphism 00:32:50 - Secretary Birds are Weird 00:34:51 - Was T.Rex too BIG to hide? 00:38:50 - How Reptile Patterns Work 00:39:37 - Colour Changing Animals 00:41:07 - Turing Patterns 00:41:55 - Running Simulations 00:45:20 - The Camo Dino Project 00:45:50 - Limitations to Research 00:47:53 - Summary