Web Results

en.wikipedia.org/wiki/Bipedalism

Bipedalism is a form of terrestrial locomotion where an organism moves by means of its two ... Many primate and bear species will adopt a bipedal gait in order to reach food or explore ..... The fossil evidence reveals that early bipedal hominins were still adapted to climbing trees at the time they were also walking upright.

humanorigins.si.edu/human-characteristics/walking-upright

Walking upright may have helped this species survive in the diverse habitats ... enabling early humans to appear larger and more intimidating;; helping early ...

www.answers.com/Q/What_species_first_appeared_to_walk_upright

The first species that is believed to have walked upright is? Homo sapiens. 1 person found ... What was the first species to appear on earth? The early bacterias.

www.smithsonianmag.com/science-nature/becoming-human-the-evolution-of-walking-upright-13837658

Aug 6, 2012 ... Walking on two legs distinguished the first hominids from other apes, but ... fossils were of brainy species–Neanderthals and Homo erectus.

news.nationalgeographic.com/news/2008/03/080320-biped-ancestor.html

Mar 20, 2008 ... Orrorin tugenensis may have been the first human ancestor to walk upright, a new analysis of the species' bones suggests.

popular-archaeology.com/issue/june-2011/article/early-human-ancestors-walked-fully-upright-earlier-than-scientists-thought-study-shows

Jul 19, 2011 ... Early human ancestors walked fully upright about 2 million years earlier ... Australopithecus afarensis is an early species thought to be ... The more recent study results appear to support the hypothesis, ... Says Crompton, "we now need to determine when our ancestors first became able to walk or run over ...

www.pbs.org/wgbh/nova/evolution/what-evidence-suggests.html

Oct 1, 2006 ... ... Johanson offers his opinion on how we humans first walked upright. ... to carnivores galore that a new entrée had appeared on the menu!

www.sciencedaily.com/releases/2007/10/071009212545.htm

Oct 10, 2007 ... Early Apes Walked Upright 15 Million Years Earlier Than Previously Thought, ... ( D) The Middle Miocene proconsulid hominoid Proconsul africanus appears to ... more than 200 mammalian species across a 250 million year time scale. ... the first true ancestral human -- as standing upright from a young age ...

www.newscientist.com/article/dn9989-timeline-human-evolution

Sep 4, 2006 ... When did humans first emerge on the scene, and how did we develop? ... with a volume around 400 – 500 cm3 -, but walk upright on two legs. First ... Our own species Homo sapiens appears on the scene – and shortly after ...

www.ncbi.nlm.nih.gov/pmc/articles/PMC2819487

Feb 3, 2010 ... During Miocene evolution, there appeared several fossil primates showing, .... besides arboreal species, semiterrestrial and terrestrial treeshrews and .... while the first indications for an upright walk have been shown to be ...