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Introduction to Human Evolution

Introduction to Human Evolution
Human evolution Human evolution is the lengthy process of change by which people originated from apelike ancestors. Scientific evidence shows that the physical and behavioral traits shared by all people originated from apelike ancestors and evolved over a period of approximately six million years. One of the earliest defining human traits, bipedalism -- the ability to walk on two legs -- evolved over 4 million years ago. Other important human characteristics -- such as a large and complex brain, the ability to make and use tools, and the capacity for language -- developed more recently. Humans are primates. Most scientists currently recognize some 15 to 20 different species of early humans. Early humans first migrated out of Africa into Asia probably between 2 million and 1.8 million years ago. Paleoanthropology Paleoanthropology is the scientific study of human evolution. Early human fossils and archeological remains offer the most important clues about this ancient past.

Museo de la Evolución Humana Publicado 13 diciembre, 2013 Por Pedro Pozas Personas no Humanas El 25 de junio de 2008, tras dos años de intenso debate en los medios de comunicación desde que presenté el Proyecto Gran Simio (PGS) en el Congreso de los Diputados, se aprobó después de una larga exposición de motivos, … [...] Publicado 7 diciembre, 2013 Por Juan Luis Arsuaga Ferreras Diversos aspectos sobre el #ADNAtapuerca del Fémur XIII de la Sima de los Huesos Con motivo de la noticia publicada en Nature sobre el ADN encontrado en la Sima de los Huesos de Atapuerca, varios medios de comunicación me solicitaron mi opinión por escrito. Recojo en este post las columnas publicadas en El País, … [...] Publicado 23 octubre, 2013 Por Emiliano Bruner Los nombres escritos en las rocas Parece que cada nuevo hallazgo en paleoantropología “revolucione” los conocimientos en este sector de la antropología evolutiva. Publicado 22 octubre, 2013 Por María Martinón DMANISI NOS TRAE DE CRÁNEO

Human Evolution Cookies on the New Scientist website close Our website uses cookies, which are small text files that are widely used in order to make websites work more effectively. To continue using our website and consent to the use of cookies, click away from this box or click 'Close' Find out about our cookies and how to change them Log in Your login is case sensitive I have forgotten my password close My New Scientist Look for Science Jobs Human evolution Introduction: Human evolution The incredible story of our evolution from ape ancestors spans 6 million years or more. Human 'missing link' fossils may be jumble of species THIS WEEK: 19:00 09 April 2014 The extinct Australopithecus sediba is hailed as a transitional form between ape-like australopithecines and early humans, but it may actually be two species Denisovans: The lost humans who shared our world FEATURE: 20:00 03 April 2014 They lived on the planet with us for most of our history, yet until six years ago we didn't know they existed. Most read Subscribe

Overview of Hominin Evolution | Learn Science at Scitable Darwin's great insight, and the unifying principle of biology today, is that all species are related to one another like sisters, cousins, and distant kin in a vast family tree of life. The implications are breathtaking; if we could travel back far enough in time, we would find common ancestors between ourselves and every other living organism, from porcupines to flamingoes to cactuses. Our immediate evolutionary family is comprised of the hominoids, the group of primates that includes the "lesser apes" (siamangs and gibbons) as well as the "great apes" (chimpanzees, bonobos, gorillas, and orangutans). Among the great apes, our closest relatives are the chimpanzees and bonobos (Figure 1). The fossil record, along with studies of human and ape DNA, indicate that humans shared a common ancestor with chimpanzees and bonobos sometime around 6 million years ago (mya). Figure 1: The human evolutionary family tree. Relationships and estimated divergence times of the living apes are shown.

El blog de Miguelón y Lucy | Un Homo heidelbergensis y una Australophitecus afarensis, de la mano en Internet How the Concept of "God" Influences Goal Pursuit Does thinking about god help you in life? It’s a question whose answer will likely never be accepted by many, but that hasn’t stopped researchers from trying to find it. A new study examining self-regulation reveals that thinking about god does help you achieve your goal, but only if your goal is to successfully resist the urge to do something. Leveraging classic and recent theorizing on self-regulation and social cognition, we predict and test for 2 divergent effects of exposure to notions of God on self-regulatory processes. Specifically, we show that participants reminded of God (vs. neutral or positive concepts) demonstrate both decreased active goal pursuit (Studies 1, 2, and 5) and increased temptation resistance (Studies 3, 4, and 5). The researchers believe the findings are due to god’s reputation for omnipotence and omniscience. From an evolutionary standpoint, the idea that God helps you resist temptation while decreasing your pursuit of other goals makes a lot of sense.

Understanding Evolution The bacteria that changed the world - May, 2017 The make-up of Earth's atmosphere, once the domain of Earth science textbooks, has become an increasingly "hot" news topic in recent decades, as we struggle to curb global warming by limiting the carbon dioxide that human activity produces. While the changes that humanity has wrought on the planet are dramatic, this isn’t the first time that one species has changed Earth’s atmosphere. Three billion years ago, there was no free oxygen in the atmosphere at all. Read the rest of the story here | See the Evo in the News archive

Early Hominin Evolution: Analysis of Early Hominids Bipedal locomotion may have been an adaptation to living in a mixed woodland and grassland environment. It has been suggested that bipedalism was selected for because it made it easier to see long distances when moving over areas covered with tall grasses. This would have been a useful advantage in scavenging for food and watching for big cats and other predators in open environments. An upright posture also potentially helps to dissipate excess body heat and reduces the absorption of heat from the sun because less skin has a direct exposure to ultra violet radiation during the hottest times of the day. There is evidence suggesting that bipedal animals usually can walk greater distances because less energy is expended with their longer strides. The fossil record of early hominins is being added to by new important discoveries almost every year. We have not yet been able to extract DNA from the bones of any australopithecine for comparison with modern human DNA.

The Science of Why We Don't Believe Science Illustration: Jonathon Rosen "A MAN WITH A CONVICTION is a hard man to change. Tell him you disagree and he turns away. Show him facts or figures and he questions your sources. Festinger and several of his colleagues had infiltrated the Seekers, a small Chicago-area cult whose members thought they were communicating with aliens—including one, "Sananda," who they believed was the astral incarnation of Jesus Christ. Through her, the aliens had given the precise date of an Earth-rending cataclysm: December 21, 1954. Festinger and his team were with the cult when the prophecy failed. Read also: the truth about Climategate.At first, the group struggled for an explanation. From that day forward, the Seekers, previously shy of the press and indifferent toward evangelizing, began to proselytize. In the annals of denial, it doesn't get much more extreme than the Seekers. We apply fight-or-flight reflexes not only to predators, but to data itself.

Explorer of the Week: Jill Pruetz In recognition of her pioneering work with chimps on the savannas of Senegal, Jill Pruetz was named a National Geographic Emerging Explorer in 2008. Over the years she and her team have discovered that chimps were using tools to kill bush babies, chimps stayed in caves to keep cool, and even successfully returned a lost baby chimp to its mother in the wild. Her work was featured in the National Geographic magazine article, “Almost Human.” What project are you working on now? Currently, I am still director of the Fongoli Savanna Chimpanzee Project in southeastern Senegal. The research is in its eleventh year. What did the support from National Geographic help you accomplish? Pruetz in Senegal, following chimps. What is the biggest threat facing chimps today? If you had an endless supply of funds, what would your next project be? Have you ever gotten attached to a certain chimp in particular? Pruetz sits near a chimp named David. Have you ever been lost? What are you reading?

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