which of the following is not a defining trait of homo erectus:
All this seems to suggest that it is the direct predecessor of contemporary Homo sapiens . However, having the species so much variation throughout the world, it is estimated that many of the last species of, may have survived until living with the first, The evolution of the human being is a diverse and complex process that involves numerous species of the genus Homo, all descendants of the first African bipedal apes also precursors of species such as the chimpanzee (, ), and ancestors and evolutionary relatives of the current human being (, Advantages and disadvantages of social groups, The characteristics of sustainable development. American Journal of Physical In addition, it had a strong jaw and no chin, with small teeth, as well as a robust body that could reach 1.80 meters high and had a marked sexual dimorphism, even greater than in the case of Homo sapiens . The continuation of such arguments underlines the need for more fossils to establish the range of physical variation of H. erectus and also for more discoveries in good archaeological contexts to permit more precise dating. The Homo erectus already has the configuration of the body needed to walk up away from the simian and approaching the actual human being. This tool complex is characterized by a simple core-flake set of tools. Recent research now suggests, however, that. This is called _______ evolution, One of the most defining features of a modern Homo sapiens skull is, One skull trend across hominin evolution that reaches an extreme with modern Homo sapiens is, Modern Homo sapiens have a skull structure lacking in earlier hominins. According to lecture, which is the earliest species associated with the use of primitive stone tools? Which of the following is NOT true about Homo erectus? Natural history of Homo erectus. The scientists in the report stated, “Analysis of the cranial morphology of more than thirty individuals reveals the survival of Homo erectus  features in Australia until as recently as 10,000 years ago.”7. This theory depends on accepting a supposed erectus-sapiens threshold as correct. A recent article stated, “If you bumped into a Homo erectus in the street you might not recognise [sic] them as being very different from you.”11. The most recent study of the Mongolian fossil now lists it at about 34,000 years old—a time considered very recent in the human evolutionary spectrum and on par with the Kow Swamp fossils. Characteristics of Homo erectus The Homo erectus already has the configuration of the body needed to walk up away from the simian and approaching the actual human being. As things stand, they are considered mere anomalies to be swept under the rug to maintain the evolutionary myth that so-called archaic human traits disappeared long ago. 1. Several general hypotheses have been advanced, but there is still no firm consensus regarding models of gradual change as opposed to scenarios of rapid evolution in which change in one region is followed by migration of the new populations into other areas. Which of the following is NOT Your email address will not be published. this in turn was crucial for H. erects to, push the hominin range beyond africa, into asia and europe, which of the following statements describes a key difference between oldowan and acheulean tools, acheulean tools, such as the hand ax, represents a predetermined sharp based on a template in the mind of the toolmaker, suggesting a ongnitive leap between earlier hominins and H. erectus. found was that of “Java man”, since it was found on the island of that same name, in Indonesia, in 1891. In this view, the ecological niche occupied by these species is more limited, leading to the isolation, and ultimately speciation, among different regional populations. Furthermore, the expansion of H. erectus across a large range of environments suggests a change in the ecology of this lineage relative to early hominins, a change that certainly has significance for how evolutionary forces acted to shape the pattern of variation we observe in the fossil lineage. bipedalism, considered a key defining characteristic that differentiated early hominins from other apes. The first Homo erectus finds were given the names Java Man and Peking Man. 288-1). Ungar, P. Rightmire, His argument was based primarily on the skullcap’s pronounced brow ridge and size. According to evolutionary dating, the five crania and four mandibles are about 1.8 million years old.2,6 Although the fossils have been placed in the H. erectus category, the extreme size and shape variation of the skulls has caused controversy. This allowed him to diversify greatly over the centuries, which is key in the history of human evolution. Look at an unfolding embryo, a genome, or a skeleton and you will see our inner fishes, our inner mammals, our inner apes. The Kow Swamp burial site would be a good example. In fact, the skull and thigh bone were about 50 feet apart, but Dubois concluded they belonged to the same individual. Some support for Leakey’s point of view has come from analysis of anatomic characteristics exhibited by the fossils. Several of the skulls look as though there may have been some sort of disease pathology at work. Most human traits are ____, meaning they vary and are inherited independently of each other. Additions to these two bodies of data may settle remaining questions and bring the problems surrounding the evolution of H. erectus nearer to resolution. The Lord has not only shown... Mayflower Pilgrims, Simian DNA, and Straw Men. Dubois had specifically been looking for the missing link between apes and humans, and for him the combination of a human-like body and ape-like brain represented just that (Shipman 2002). Larger bodies, and longer limbs in particular, increase locomotor efficiency (Pontzer et al. What defines radial symmetry? The subspecies known so far of Homo erectus are: It is also suspected that other fossils registered as distinct species, are actually variants of the same Homo erectus , such as: The main archaeological sites of this species are in Asia: China and Java. In fact, evolutionists note that due to this variability, if the skulls hadn’t been found close to one another and in the same rock layer, they would have been placed in different species categories. The only nearly complete H. erectus fossil is Turkana Boy, whose post-cranial skeleton was found to be nearly identical to modern humans. Homo erectus is arguably the earliest species in the human lineage to have so many human-like qualities. O. Why do many primates live in groups? In Java there are Modjokerto, Sangirán, Trinil and Ngandong. For example, a smaller-brained H. erectus may have been among the first humans to tame fire, but much bigger-brained people in other regions of the world living later in time have left no evidence that they knew how to handle it. These are some of the questions that researchers ask of H. erectus fossils: How did the ecology of Homo erectus differ from that of preceding hominins? Which of the following is the name of the oldest stone tool industry? What species is associated with the cave paintings in western Europe? Why do some male primates commit infanticide? Despite having a heavier, more flattened braincase, H. erectus, most particularly the African representatives of the species sometimes called H. ergaster, is not out of place in this sequence. e. Eugene Dubois found the first Homo erectus fossil. When present, endocasts provide some resolution on the size, shape, and surface structures of the brain in fossil taxa. Anthropology 102, 265-281. et al. Some creation scientists also speculate that genetic abnormalities would have surfaced more rapidly in small, isolated, inbred populations, which may explain some of the unusual variations seen in H. erectus skulls.2. Thorne, A. G. and P. G. Macumber. Homo erectus thus presents paleoanthropologists with the challenge of trying to interpret fossil variation in the context of both widespread geographic and temporal distribution. In a 2006 finding in Mongolia, researchers reported a skullcap whose “analysis shows similarities with Neanderthals, Chinese Homo erectus, and West/Far East archaic Homo sapiens.”8 Just like the Kow Swamp fossils, the evolutionary dates don’t fall within the range of typical H. erectus.

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