Ardipithecus

ardipithecus boisei is 18.5, homo erectus is 35.71, homo habilis is 33.6, homo heidelbergensis is 26.1, homo neanderthalensis is 25.5, homo sapiens is 36.77, and sahelanthropus tchadensis is 18.5. The fact is if the opisthion index is less than 15, then that…

Introduction The purpose of this paper is to inform the reader about the evolution of the first hominids and to look at some of the reasons that they became bipedal. From there, expand on what evidence has been found to support these hypothesis, and finally look at how these changes created both biological and geographical difference in the sub-species of hominids. This paper will detail each species in a high level overview so that the reader may gain a better perspective of what each species…

the process of different species developing and diversifying over a period of time to adapt to their environment. A good example would be us. According to scientists we have ancestors that trace back to six million-years-ago to a group called the Ardipithecus group which is our closest link to other primates. Christianity says that humans are only six thousand-years-old. Evolution was introduced by a very intelligent man, named Charles Darwin. Charles, born on February 12th, 1809 and lived to…

Introduction: Evolution the change over a period of time is important because it demonstrates scientist the need of our ancestors for a certain body part that humans do not need which are called vestigial structure. One of the main evidence regarding evolution is fossils. Fossils are mostly used to determine structure similar animals have that humans have in order to draw conclusions. Another evidence is blood which generally shows similarity in the dna of two different mammals. The purpose…

The primates that possess characterics like bipedalism, smaller canine size and bigger brain size are hominins. Humans are the modern Hominins and the fossils reveal that several species of hominins are extinct. Homo is a type of Hominin that lived around 1.9 m.y.a and it is the immediate predecessor of Homo sapiens. Paleontologists and archeologists have classify each time they discover new fossils that have primates and or derived characteristics. The two groups of anthropologists are lumpers…

placed opisthion, then it is a bipedalist. Variables Dependent: The skull volume Independent: The tools that we use and the way we measure each skull Materials Skulls (11) Caliper Ruler Protractor Observations Skull Name General Description Ardipithecus ramidus Tiny jaw, small head, quadrupedal Australopithecus aethiopicus Wide head, and not very lengthy, bipedal Australopithecus afarensis Long head and large jaw, bipedal Australopithecus africanus Just like the Australopitheus afarensis,…

its past. Scientists are trying to know if the Australopithecus anamensis was a same or a different species from the Australopithecus afarensis. Scientists are also trying to figure out if the Australopithecus anamensis was a descendent from the Ardipithecus ramidus. The Australopithecus anamensis had a mix of traits found in humans and apes. Examples of human-like traits can be seen in the following: Structures from the tibia (shinbone) and the ankle joint, indicates the ability to walk on two…

Hominid Evolution is the evolution of human lineage. Dating back millions of years with Sahelanthropus tchadensis, it's the oldest found hominid, dated around 7 million years old. This species is known for its cranium and it's very small brain size, and a specific amount of both jaws and teeth. It has many, ape-like features, such as; small brain size, brow ridges and small canine teeth, which are characteristic of hominids. However, this along with the fact that it comes from around the…

distinction of and variation with Homo sapiens across the world in the late twentieth century. Since the emergence of life men have discussed palaeoanthropology and theories regarding the heritage of pre-existing Homo sapiens. It was believed that there were two different theories to the migration, whether or not they are true or just myths. One follows the concept of multiregional continuity and the other that suggests a single origin for modern humans. ’The ‘Out of Africa’ theory believed that…

(Tools) The origin of tools was nothing more than simple rocks that were broken down slightly. They had very little dimension to them, having no real purpose. They were used to kill and maim animals but were not as precise as more modernized societies. This is where the most difference is shown between the hominid species. It is clear to an archaeologist which tool comes from which species of people or from which time period based off physical presence of it. Was the tool banged up on other…