Introduction: Bipedalism and the change of dentition have been landmarks for evolution of the early hominins that once wandered our planet up to three million years ago (Shook‚ 2015). One of the specific species that has exhibited bipedalism and changes within their skeletal structure is Australopithecus africanus‚ that some may recognize better as the Taung Child (Barak). Living from 3 to 2.5 million years ago‚ this species has been known to have developing dentition and obligate bipedalism
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Until recently‚ the evolutionary origin of cetaceans has been a mystery. Cetaceans are aquatically specialized mammals that exhibit body streamlining‚ have no hair or hind limbs‚ but adapted flippers and flukes for underwater movement. This group includes porpoises‚ dolphins‚ and whales (Thewissen et al.‚ 2001). Despite having features so specifically adapted for aquatic life‚ cetaceans‚ according to scientists‚ have actually evolved from land animals. Some scientists even argue that cetaceans evolved
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We were given eight different skulls and we were required to take measurements and notes on each one‚ such as recording the maximum braincase length or determining if the specimen has a chin. With these detailed notes‚ we researched various skulls and matched them with the data we have‚ therefore leaving us with eight indentified skulls. This report will thoroughly discuss what we believe each skull is and why we think so. Firstly‚ we believe skull number one is Homo habilis. H. habilis is about
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Did A. afarensis make and use stone tools at the site of Dikika some 3.39 million years ago? The first evidence of stone tool use and manufacture was found in Gona (Ethiopia) which dates back to between 2.6 and 2.5 million years ago as well as several cut-marked bones found near the Bouri site which indicates stone tool use 2.5 million years ago (McPherron et al. 2010). A. Afarensis is a hominin species found between 3.6 and 2.9 million years ago at sites in Ethiopia‚ Kenya‚ and Tanzania. Since being
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During the Pleistocene epoch‚ or 1.8 million years to 10‚000 years ago‚ Homo floresiensis occupied the Liang Bua‚ a cave on Flores in eastern Indonesia. They were relatively small people‚ identical to modern-day dwarfs. But after researching recovered fossils of their bodies scientists realize there are distinct differences; one of these differences happens to be the foot of h. floresiensis. The size of the foot is unusually long compared to their tibia and femur. These proportions have never
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There are several theories of the development of modern humans. The report discusses the most logical theories. In my view‚ the multi-region hypothesis is the most logical theory because it is better to prove facts of evolution. According to the multi-region hypothesis‚ the focus is on H. erectus‚ leaving Africa back and forth 2 million years back and developing into modern humanity. The focal point of the African hypothesis states that Homo sapiens originated through the evolution of H. erectus
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The Indri Skeleton differs from the human skeleton in numerous ways. One of the most prominent differences between the Indri skeleton and human skeleton is the vestigial tail. Indri is the only lemur that has a short vestigial tail. Today‚ most humans do not have a vestigial tail. Although‚ in rare occasions‚ a human may be born with a short like tail structure at birth. All humans do have a coccyx. The coccyx is the remnants of the lost tail that humans once had. Jaw structure between the Indri
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”No‚ please don’t kill me! Don’t push me off this tree! I’ll do anything!” “ Mark my words‚ your body will rot until the day they find you‚ fellow australopithecus!” “NOOOO!” ******* 3.2 Million Years Later ******* “Hey‚ Tom look what I found!” “What is it Donald?” And that’s how it all happened. At least that is how I imagined it happening. My theory is that Australopithecine were creatures in the transitional phase from chimpanzee to human but‚ were in fact more human than like a chimpanzee’s.
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Based off the information given in table 1 a number of trends in characteristics can be identified from the Papio anubis to the Homo neanderthalensis. There is a significant trend towards a taller and more vertical posture; this is supported by information gathered on locomotion. Starting from the monkey Papio anubis on the far left of the table‚ it’s movement is quadruped as it moves on all four limbs. Moving right of the table a transition from quadrupedal to bipedal becomes noticeable as the Pan
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A 240-million-year-old reptile with a skeletal precursor of a shell has been revealed as the grandfather of all turtles. Scientists have given it the moniker Pappochelys‚ meaning ’grandfather turtle‚’ in honor of its newly found position at the forefront of the turtles’ evolutionary lineage. What the shell? Grandfather turtle was actually shell-less Pappochelys‚ the lizard-like reptile found in a quarry in southern Germany‚ is now the oldest turtle fossil to date. Pappochelys is so old‚ the former
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