Videos - Stated Clearly. Stated Clearly is creating animations on genetics and evolution. ¿Qué es el ADN y Cómo Funciona? GLACIARES E INTERGLACIARES Y SUS EFECTOS SOBRE LOS ECOSISTEMAS. Desde que diera comienzo el Período Cuaternario, hace dos millones y medio de años, se han reconocido seis etapas glaciares y seis interglaciares.
Blog d'Humanitats. La historia del clima - Revista del Aficionado a la Meteorología. National Centers for Environmental Information (NCEI) Paleoclimatology: Climate Proxies. Created by Monica Bruckner, Montana State University.
What is Paleoclimatology? Scientists take samples from the center of the coral. Clipperton Atoll, 10°N, 109°W. TIERRA SYLVANA: GLACIARES E INTERGLACIARES Y SUS EFECTOS SOBRE LOS ECOSISTEMAS. Early Human Evolution: Climate Change and Human Evoluti. The evolutionary surge that led to Homo habilis began during the transition between the Pliocene and Pleistocene Epochs around 2.5 million years ago when climates were becoming cooler and drier.
All later species of Homo evolved during the Pleistocene (2,600,000-11,700 years ago). This was generally a time of more extreme world cooling and recurrent glaciations (ice ages). During the coldest periods, global temperatures dropped by about 9º F. (5º C.) and long-lasting ice sheets spread out from the poles and high mountains. Between the four or more major glaciations of the Pleistocene, there were interglacial warming periods with temperatures similar to now.
Both the glacials and the interglacials lasted tens of thousands of years. Glacier pano Nature - Photo - Fond-Ecran-Image. Interactive Timeline. Skip to page content A Journey to a New Land Site Resources Menu Multimedia Library Interactive Timeline Download free Flash Player Copyright © SFU Museum of Archaeology and Ethnology, 2005.
¿Cómo llegó el hombre a América? ¿Cuántas glaciaciones han ocurrido? Ice age sea levels. Handprint : Ancestral Lines. Hominid Fossil Sitesand Patterns of Hominid DispersalWhen and how new hominid species appeared, and how they affected or displaced already existing species, are questions that many lines of research are helping to answer.
Patterns of human migration form a key part of the solution. Recently, with more powerful geological dating methods based on fluctuations in the earth's magnetic field or electron spin resonance, the earliest Homo erectus fossils from China have been dated to 1.9 million years ago. This requires an even earlier date for the emergence of Homo ergaster in Africa, implying humans first evolved about 2.5 million years ago.
Trailblazers across Arabia. For what they were... we are: The various options for the migration out of Africa. I want to call your attention to the latest entry at M.
Petraglia and colleagues' blog Ancient Indian Corridors. The main focus of this short entry (with open access links to the relevant papers) is the Jubbah site in what today is the terrible Nafud Desert but what really called my attention the most is this other article: Trailblazers across Arabia, where Petraglia discusses not just his own work on the matter of the migration out of Africa of Homo sapiens but also the recent one by Armitage, who proposed a coastal migration via southern Arabia some 125,000 years ago. This map from that article really synthesizes the various options, even if the matter on when the migration happened (125 Ka ago or more like 90-80 Ka ago) remains open: Sadly the Ice Age sea levels are not reflected, for that reason we cannot appreciate that the Persian Gulf was then above sea level, constituting a fertile riverine and swampland region that surely hosted plenty human settlements. Global Sea Level Rise Map - Global Warming & Climate Change Impact.
Out of Africa I - Wikipedia. This article is about early humans.
For migrations of modern humans, see Out of Africa II. In palaeoanthropology, Out of Africa I is the first series of hominin expansions into Eurasia, which took place from 1.8 to 0.8 million years ago (Ma). Climate Swings Drove Early Humans Out of Africa (and Back Again) - SAPIENS. Migratory Crossings. Out of Africa For the human journey to really get into its stride, our species had to leave the warm embrace of mother Africa.
Researchers identify the Bab-el-Mandeb Strait on the Red Sea as the most likely departure point. This narrow stretch of water between the Horn of Africa and the Arabian Peninsula offered the shortest route to new continents. Diputación de Albacete. Mapas Interactivos de Didactalia. Africa - Relief. Africa Physical Map Quiz. Map of Human Migration. When humans first ventured out of Africa some 60,000 years ago, they left genetic footprints still visible today.
By mapping the appearance and frequency of genetic markers in modern peoples, we create a picture of when and where ancient humans moved around the world. These great migrations eventually led the descendants of a small group of Africans to occupy even the farthest reaches of the Earth. Our species is an African one: Africa is where we first evolved, and where we have spent the majority of our time on Earth. The earliest fossils of recognizably modern Homo sapiens appear in the fossil record at Omo Kibish in Ethiopia, around 200,000 years ago. Although earlier fossils may be found over the coming years, this is our best understanding of when and approximately where we originated. According to the genetic and paleontological record, we only started to leave Africa between 60,000 and 70,000 years ago.
The story doesn’t end there, of course. Unraveling Our Genetic History. La genètica de les migracions humanes - Revista Mètode. The Origin of Us. Who are we?
Where did we come from? Why are we here? The age-old question of our origin has been baffling mankind for centuries. For most of our history, it was widely accepted that man had been created by an omnipresent, omnipotent, God or Gods. Most ancient texts such as the Bible, Torah and The Sumerian tablets seemed to all contain similar stories of such beings. The Ancient World Unit: Multiregional Theory or Out of Africa Theory? L'homme de Yamashita-cho. Un homme fossile du Pléistocène de l'île d'Okinawa (en anglais) Bull, et Mém. de la Soc. d'Anthrop. de Paris, t. 10, série XIII, 1983, p. 81-87.
THE YAMASHITA-CHO MAN. A late Pleistocene infantile skeleton from the Yamashita-cho Cave (Okinawa) by H. Suzuki (*) David Le Breton:“pensar el cuerpo es pensar el mundo” David Le Breton es doctor en Sociología de la Universidad París VII y miembro del Instituto Universitario de Francia. Profesor en la Facultad de Ciencias Sociales de la Universidad de Ciencias Humanas Marc Bloch de Estrasburgo, ha escrito innumerables artículos y colaboraciones, y más de 20 libros (traducidos a los más diversos idiomas), en relación a la temática del cuerpo humano y su construcción social y cultural. Algunas de sus obras han sido traducidas al español: Antropología del Cuerpo y Modernidad; La Sociología del Cuerpo; Antropología del Dolor; El Silencio; Las Pasiones Ordinarias.
Antropología de las Emociones y Adiós al Cuerpo. En octubre de 2005, durante la realización del II Congreso de Artes, Ciencias y Humanidades “El Cuerpo Descifrado” en México DF, al que concurrí, el Dr. Le Breton dictó una Conferencia Magistral titulada “Adiós al Cuerpo”, basada en su libro homónimo. Imitación, lenguaje y socialidad. Monash University: Sahul Time: Explore. Global Navigation. Mouse click reveals ancient coastline › News in Science (ABC Science) News in Science Wednesday, 3 October 2007 Anna SallehABC The changing shape of Australasia can now be seen in a new interactive digital map that mimics the rise and fall of sea levels over the past 100,000 years.
The map also has pop-up images and text about key archaeological sites and possible routes humans took from Asia to Australia during the last ice age. Science Teaching Materials, Activities, Worksheets, and Lesson Plans. Animal Kingdom Flashcards Use these flashcards to teach groupings in the animal kingdom. Groups included are: amphibians, arachnids, birds, bony fishes, cnidarians, cartilagnious fishes, crustaceans, echinoderms, insects, mammals, mollusks, and reptiles. Animal Taxonomy Crossword: DMNS-Ice Age in Depth.
What is an ice age? An ice age is a period of time—usually millions or tens of millions of years—when vast glaciers, called ice sheets, cover much of the Earth’s land surface. Several ice ages have occurred throughout our planet's history. The latest ice age began about 2.5 million years ago. Mapping Mankind’s Trek – Ancient Coastlines and Land Bridges. Over the last 150,000 years the world’s climate has switched constantly from warm interglacial to cold glacial conditions, marked by advances and retreats of ice sheets. From 75 – 60,000 years ago the climate was glacial and cold. The huge volume of water locked up in the ice caps of northern Europe and North America took the world’s sea levels to over 250 feet lower than today and made the climate very dry.
Com feien foc els nostres avantpassats? Huummm... Tools & Food. New Tools, New Foods. PBS: Public Broadcasting Service. The Making of the Fittest: Natural Selection and Adaptation. Dropbox. BECOMING HUMAN - NOVA - Discovery/Science/History (documentary) Teaching Evolution through Human Examples. The "Teaching Evolution through Human Examples" (TEtHE) three-year exploratory research and development project was funded by National Science Foundation Discovery Research K-12 grant #1119468.
The project has created four curriculum units for Advanced Placement (AP) Biology classes, aligned to the learning objectives, using human case studies to teach core evolutionary principles. Somebody That I Used to Know - Walk off the Earth (Gotye - Cover) Suport ap co. Coneixement del Medi. Unitat Didàctica 12: Vivim en comunitat. Recursos per als mestres. escola puig d'arques. Joc de l'esquelet on Scratch. ES RACÓ DES PT - EL RINCÓN DEL PT: L'esquelet escala 1/1 en castellà, català i anglès. L'esquelet. Relacionar Mosaico Hábitos de higiene . biología. Javier Queza... Skeleton Game 1 - Anatomy - Health. Exposicions. Tots x Tots » Ètnies del món. Google. La Pedra Filosofal.
Selección Natural. Com elaborar un eix cronològic. Year-by-Year World Population Estimates: 10,000 B.C. to 2007 A.D. Visualizing How A Population Grows To 7 Billion. Evolución de la Población. La prehistòria. Lesson 1: The Peopling of Our Planet - World Population. Statistical software & data analysis add-on for Excel. Culture Collections that begin with A on eHRAF World Cultures.
Culture Collections that begin with A on eHRAF World Cultures.