Australopithecus afarensis

genetic difference of 1.2 %. And the Australopithecus afarensis shows a clear mosaic of human-like and ape-like anatomical structures. Here in this paper I would compare and contrast the physical characteristics and social behaviors of chimpanzees and Au. afarensis. Through investigating the relationship between chimpanzees and Au. afarensis it may give us a better picture of how and why humans evolved to what we are today. The average male Au afarensis weighs about 92 lbs and females about…

is a large-scale evolutionary change over a long time period, or major evolutionary changes over a short period (Stanford et al, 2013). An example of this can be demonstrated by the difference in the hands of the modern human and Australopithecus afarensis. A. afarensis is known to have lived between 2.9 and 3.9 million years age. The paleoanthropological evidence of these hominids hands resembled that of an arboreal species. The fossils show curved proximal phalanges suggesting adaptation for…

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…

Ardipithecus pelvis appears to be transitional between being suited for climbing in trees and being modified for walking on two legs (Kottak, 2015). A fairly complete skeleton of Ardipithecus ramidus, named “Ardi” is the earliest known hominin Australopithecus afarensis lived around 3 million years ago (Kottak, 2015). Fossils, including the well know skeleton named “Lucy”, show that they had a mixture of apelike and hominin characteristics (Kottak, 2015). The lower spine, hip joint, pelvis, and…

Its origins are traced to Harder, Laetoli, Tanzania and South Africa. Dating back to 3 million years ago has the earliest best described hominid remains. The Australopithecus has many species such as Africanus and Afarensis through the findings of Lucy Dikita baby and the laetoli footprints. The Australopithecus Afarensis was discovered to be ape like where its upper body had curved features which adapted it for climbing. Moreover, it was also full erect hominid as indicated by the position…

Charles Darwin’s theory of natural selection came to him after many years of travel on the British ship, HMS Beagle, around the world. Darwin was also greatly influenced by contemporaries, such as his professors, earlier naturalists, and so forth. On this voyage around the world, Darwin collected and observed numerous plant and animal species from all of the different environments he visited. The theory of natural selection can be defined as the evolution of species over time; species better…

2008). Fossils are very significant because they are pieces from the past that provide us with evidence of organisms that were once alive (Larsen 2008). The three hominins that I’ll be comparing are Sahelanthropus tchadensis, the Australopitheicus afarensis, and the Homo neanderthaleasis. This gives us a wide range to compare from really early on to a more recent hominins that eventually leads to modern humans. Comparing the brain size of this 3 species is very interesting because it allows us…

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…

Ardipithecus ramidus was around 4.4 mya. They were located in Ethiopia. Their appearances included a skull, teeth postcranial bones found. Although, they still have small brains. Their femur and pelvis made it possible for bipedalism. The shape of their body gives it a helpfully way for them to be bipedal. The centrally placed foramen magnum allows for them to stand a bit straight. Also, the pelvis was bowl shaped and there was a show of lumbar lordosis. Although, they still had longer arms…

Africa is the supposed birthplace of the human race. It is here that the Australopithecines, a group of hominins including Australopithecus and Paranthropus, lived from 4.2 to 1.2 million years ago. In the same area but from 1.9 to 0.027 million years ago, Homo ergaster also roamed around. Even though they shared the same geographic location, they each represent very different phases of the evolution to what we are today. It would therefore be interesting to see how they differed, based on the…