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The document outlines how fossil evidence and branches of paleontology and paleoanthropology build understanding of prehistoric life, including key discoveries in Africa. It summarizes hominid development across major species, debates about ancestry versus dead ends, and genetic approaches such as archaeogenetics to clarify relationships between humans and Neanderthals. It further connects “Mitochondrial Eve” and “Y-chromosomal Adam” to recent common ancestors and the “Out of Africa” spread, including migration paths to Australia and global expansion within 10,000 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did early theories connect evolution to human biological diversity?","Question",{"text":111,"@type":112},"The document describes first theories that linked biological diversity to evolution, emphasizing Charles Darwin’s role in proposing mechanisms for evolutionary change.","Answer",{"name":114,"@type":109,"acceptedAnswer":115},"What types of evidence and fields are used to study human evolution?",{"text":116,"@type":112},"It outlines fossil evidence gathered through paleontology and paleoanthropology, typically relying on fossils, artifacts, and bones to interpret prehistoric life.",{"name":118,"@type":109,"acceptedAnswer":119},"How do genetic findings relate to Neanderthals and modern humans?",{"text":120,"@type":112},"Through archaeogenetics, the document states that comparisons of ancient and modern DNA show humans are not descended from Neanderthals, and it also describes traits inferred from Neanderthal genes.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},613316,1792385164,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":132,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":4,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":138,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":128,"read_time":41},1374402968488,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","|  |  | | | | \u003Cbr>THE EARLIEST HUMANS\u003Cbr>© Student Handouts, Inc. |\n| --- | --- | --- | --- | --- | --- |\n\nFIRST THEORIES OF HUMAN EVOLUTION  \n􀁼 Charles Darwin  \n􀁹 On the Origin of Species (1859)  \n􀁼 First to link biological diversity to evolution  \n􀁹 The Descent of Man, and Selection in Relation to Sex (1871)  \n􀁼 Described human evolution  \n􀁼 Saw aesthetic factors (“looks”) as sexual attractors  \n􀁼 Thomas Huxley  \n􀁹 Evidence as to Man’s Place in Nature (1863)  \n􀁼 First book to describe human evolution  \n􀁼 These scientists wrote about human evolution before human fossil evidence was ever discovered  \nFOSSIL EVIDENCE FOR EVOLUTION  \n􀁼 Paleontology  \n􀁹 Study of prehistoric life of all forms, typically using fossils  \n􀁼 Paleoanthropology  \n􀁹 Study of prehistoric human life (and human ancestry), typically using fossils  \n􀁼 Mary and Louis Leakey  \n􀁹 Lifetimes dedicated to finding fossil evidence of human ancestors in Africa  \n􀁹 Olduvai Gorge  \n􀁼 “The Cradle of Mankind”  \n􀁼 Great Rift Valley in eastern Africa (Tanzania)  \n􀁼 Erosion reveals layers of datable artifacts, bones, and fossils going back 2,000,000 years  \nHOMINID EVOLUTION  \n􀁼 Hominids = “great apes”  \n􀁹 Chimpanzees, gorillas, humans, and orangutans  \n􀁼 Numerous intermediary fossils have been found  \n􀁹 But scientists disagree on which are human ancestors and which are evolutionary dead ends  \n| Homo habilis |  |  |\n| --- | --- | --- |\n|  |  |  |\n\nHomo erectus  \n\n| Homo sapiens neanderthalensis | Homo sapiens sapiens |\n| --- | --- |\n\nHUMAN EVOLUTION  \n􀁼 Homo habilis  \n􀁹 2.4 to 1.4 million years ago  \n􀁹 Fossils found in southern and eastern Africa  \n􀁹 Used simple bone and stone tools  \n􀁹 Nicknamed “handy man”  \n􀁼 Homo erectus  \n􀁹 1.8 million years ago to 70,000 years ago  \n􀁹 First human ancestor to walk fully upright  \n􀁹 Some made complex stone tools  \n􀁹 Example – “Peking Man”  \n􀁹 Descendants were humans and neanderthals  \nNEANDERTHALS  \n􀁼 Homo sapiens neanderthalensis  \n􀁼 Circa 400,000 to 30,000 years ago  \n􀁼 Lived in Europe and Asia  \n􀁼 Archaeogenetics – analysis of ancient and modern DNA  \n􀁹 Comparison of human and Neanderthal DNA shows that humans are not descended from Neanderthals  \n􀁹 Genes reveal that Neanderthals had red hair and fair skin  \n􀁼 Fair skin developed to aid in the absorption of Vitamin D from the sun in areas far north of the equator  \n􀁼 Convergent evolution – different species (such as humans and Neanderthals) developing same characteristic(s)  \nHUMANS – HOMO SAPIENS  \n􀁼“Homo”(Latin) means “man”or“human”  \n􀁼“Sapiens”(Latin) means “wise” or“intelligent”  \n􀁼“Homo sapiens” = “wise man”or“wise human”  \n􀁼 Humans and Neanderthals both considered “sapiens”  \n􀁼 Anatomically modern humans in Africa by 200,000 years ago  \n􀁹 Middle Paleolithic period  \nMITOCHONDRIAL “EVE”  \n􀁼 Mitochondrial DNA  \n| 􀁹 DNA that is passed from women |\n| --- |\n| Grandmother Mother Daughter |\n|  |\n\n􀁼 Mitochondrial “Eve”  \n􀁹 Lived 60,000 to 250,000 years ago  \n􀁹 Most recent common female ancestor of all living humans  \n􀁹 Lived in or around modern-day Tanzania in Africa  \n􀁹 She was part of a group of early humans  \n􀁼 But only her mitochondrial DNA survives today  \nY-CHROMOSOMAL “ADAM”  \n􀁼 Y-chromosome  \n􀁹 DNA that is passed from men  \nGrandfather Father Son  \n􀁼 Y-chromosomal “Adam”  \n􀁹 Circa 60,000 years ago  \n􀁹 Most recent common male ancestor of all living humans  \n􀁹 Lived in Africa  \n􀁹 He lived as part of a group of early humans  \n􀁼 But only his Y-chromosome survives today  \nHUMANS – HOMO SAPIENS SAPIENS – “US”  \n􀁼 Fully modern humans (like us) in Africa by around 60,000 years ago  \n􀁹 Descendants of Mitochondrial Eve andY-chromosomal Adam  \n􀁹 Culture, language, music, etc.  \n􀁼 “Out of Africa”theory  \n􀁹 Archaeogenetics (analysis of ancient and modern DNA) shows that humans began spreading throughout, and out of, Africa beginning around 60,000 years ago  \n􀁼 Early human migrations  \n􀁹 Humans left southeastern Africa and spread throughout the continent  \n􀁹 Humans traveled along the Indian ","cbCaisz9IgZT4lsF","https://ap.wps.com/l/cbCaisz9IgZT4lsF","pdf",441180,12,"English","# First Theories of Human Evolution\n# Fossil Evidence for Evolution\n# Hominid Evolution\n# Human Evolution\n# Neanderthals\n# Humans – Homo sapiens\n# Mitochondrial “Eve”\n# Y-Chromosomal “Adam”\n# Humans – Homo sapiens sapiens (“US”)\n## “Out of Africa” theory\n## Early human migrations","[{\"question\":\"How did early theories connect evolution to human biological diversity?\",\"answer\":\"The document describes first theories that linked biological diversity to evolution, emphasizing Charles Darwin’s role in proposing mechanisms for evolutionary change.\"},{\"question\":\"What types of evidence and fields are used to study human evolution?\",\"answer\":\"It outlines fossil evidence gathered through paleontology and paleoanthropology, typically relying on fossils, artifacts, and bones to interpret prehistoric life.\"},{\"question\":\"How do genetic findings relate to Neanderthals and modern humans?\",\"answer\":\"Through archaeogenetics, the document states that comparisons of ancient and modern DNA show humans are not descended from Neanderthals, and it also describes traits inferred from Neanderthal genes.\"}]","The Earliest Humans - First Theories of Human Evolution - Human Fossil Evidence and Evolutionary Lineages | PDF"]