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Which of these hominids was bipedal but had a relatively small brain?
The Australopithecus afarensis was a bipedal hominid and its brain case was only 500 cubic centimeters (about 1/3 the size of modern human brain cases). The Australopithecus afarensis lived 3.85 to 2.95 million years ago in eastern Africa.
Which step in hominid evolution came first bipedal locomotion or larger brains?
This question HAS been answered. Bipedality preceded encephalization by many millions of years. (This presumes you are using "hominid" synonymously with "hominin", the latter being the term now in general use and referring to bipedal apes, i.e., Hpmo sapiens and our bipedal forebears. "Hominid" refers to all the other, nonbipedal great apes, i.e., Chimp, Gorilla, Baboon and Orangutan.)The members of the genus Australopithecus, including "Lucy" (A. afarensis), extant between four and two million years ago, were bipedal but with brain size no greater than 450 cc, the size of a Chimp brain today.The specimen Sehelanthropus tchadensis, dated at 6.5 million years ago and almost certainly bipedal, had a brain size of about 350 cc.The first appreciable increase in brain size comes at about 1.9 million years ago with Homo erectus, specimens found in Tanzania and Kenya.Jay Greene, Communications CoordinatorInstitute of Human Origins
What is the characteristic of ramphitecus?
Ramapithecus, an extinct hominid, is characterized by its small brain size, ape-like dental features, and bipedal postcranial traits. It is believed to be one of the earliest ancestors of modern humans.
Can paleonologists distinguish between a human skull and a ape skull by the size of the brain cavity?
Yes, of course. The other factors that they consider are not just the size, but also the shape of the bones.
What Contains the nerve centers which help control eye movement and size of pupils?
the brain
How big is a snails brain?
snails do not have a spinal cord which makes them an invertebrate and thus concludes the snails have no brain.
What part of the brain contains nerve centers which help control eye movement and the size of the pupils?
Oculomotor Nerve
What is a Stegasaurus' brain the same size as?
a stegasauruses brain is as big as a cats brain
What was unique about the Australopithecus afarensis?
Australopithecus afarensis is unique for their combination of both ape-like and human-like features, such as a small brain size, human-like teeth, and ape-like arms and legs. They were bipedal, meaning they could walk on two feet, which was a key step in human evolution. Lucy, a famous Australopithecus afarensis fossil, provided valuable evidence of their bipedal locomotion.
What adaptations did Homo Erectus have?
Homo erectus had adaptations such as a more efficient bipedal walk, reduced jaw and tooth size, increased brain size, and the ability to use tools for hunting and scavenging. These adaptations helped them to better navigate and survive in various environments, leading to their widespread distribution across Africa and Eurasia.
What is the size of a 10mm brain leasion?
what is the size of a 10mm leasion on the brain
What size is a baby's brain?
2/3 of the size of an adult brain
