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CHAPTER 1 - CHAPTER 1 INTRODUCTION TO PHYSICAL ANTHROPOLOGY...

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CHAPTER 1- INTRODUCTION TO PHYSICAL ANTHROPOLOGY 3.7 MYA animals walked across northern Tanzania, Africa they were early Homindae , the family that also includes Homo sapiens . Volcanic eruption/ash shortly after preserved the tracks of numerous animals including early Hominids . These prints revealed bipedally (on two feet), and that fact tells us that those travelers were hominids. These hominids very similar to us except their brain is 1/3 ours. Early hominids not that successful (not fast, small teeth, subject to the whims of nature). Species- a group of organisms that can interbreed to produce fertile offspring. Members of one species are reproductively isolated from members of all other species (i.e. they cannot mate with them to produce fertile offspring). Physical or biological anthropology- scientific discipline concerned with the biological and behavioral characteristics of human beings; our closet relatives, the nonhuman primates (apes, monkeys, and promisians); and their ancestors. How did we adapt? Change climatic areas? Adjust to different places? Evolution- a change in the genetic structure of a population. Variation Adaptation- anatomical, physiological, or behavioral response of organisms or populations to the environment. Evolution can be new species. But it is also change in the genetic makeup of a population from one generation to another. (New species= macroevolution ; frequency of traits w/in pop= microevolution) . Culture- behavioral aspects of human adaptation, including technology, traditions, language, religion, marriage patterns, and social roles. Culture is a set of learned behaviors transmitted from one generation to the next by non-biological (i.e., non-genetic means). Culture plays a very imp. role in human evolution.
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