briefly describe the changes which came in lifestyle of human around 35000 years ago
Answers
Answer:
The hominid fossil record
Appearance of modern-looking humans
Resources
The history of how the modern human species, Homo sapiens sapiens, evolved is reconstructed by evidence gathered by paleontologists, anthropologists, archeologists, anatomists, biochemists, behavioral scientists, and other professions. Evidence comes from the record left by fossils and by extrapolation from modern primates, human hunter-gatherer tribes, and (in recent years) rapidly increasing knowledge of DNA (deoxyribonucleic acid), both human and other.
Fossils are evidence of past life. In practice, human fossils are mostly bones and teeth, which are the parts of the human body least likely to decompose
Most individuals never fossilize; it is extremely unusual for bodies to be subjected to all of the conditions necessary for fossilization. Nevertheless, there is an unusually rich record of transitional fossils showing the gradual formation of human features from those of our immediate prehuman apelike ancestors. The growth of the skull, the shrinking of the jaw, and the shift to upright posture are all well documented.
Scientists date fossils by one of several techniques, including carbon-14 dating, which measures the ratio of radioactive carbon to stable carbon, and potassium-argon dating, which measures the ratio of a radioactive form of the element potassium to its breakdown product, argon. Before these methods were available, index fossils of a particular geologic period were used to give an approximate date to other fossils. More recent dating methods include thermoluminescence, electron spin resonance, and fission track dating.
Paleontologists try to recreate the entire animal from sparse bone fragments by comparing the fossil fragments with similar animals, both now living or fossil, of which more information is known
Since complete fossils are rarely found, anatomists recreate the entire skeleton by comparing it with other individuals from the same species or with closely related species. Muscles are reconstructed over the skeleton based on a knowledge of anatomy, and the animal is positioned based upon how a similar living animal would move.
them a possible ancestor.
Determining When A Fossil Find Is An Early Human
What is it that makes us essentially human? Our name, Homo sapiens, means “wise man.” Intelligence is the quality most widely seen as making humans unique
Fossil evidence of intelligence is based upon brain size measured in volume (cubic centimeters, cc). Human brains are three times larger than any comparable primate of a similar weight. Although they grow after birth at a rate that is average for a mammal, they continue to grow for much longer than other animals. Our brains also have different proportions than other primates. Particular areas of the human brain have developed in unique ways, especially the parts of the brain responsible for speech. The other physical traits that we have uniquely acquired include an upright posture, walking on two feet, and an opposable thumb. Finally, human young are cared for over a longer period of time than any other primate.
Other animals besides humans use tools, such as chimpanzees, who fashion twigs into devices to poke termites from termite mounds. However, humans make and preserve tools with anticipation of using them in the future
Some species of animals communicate using complex sounds or show evidence of aiding another, such as dolphins and whales. Although other primates do not use symbolic language, where the meaning of words is learned, they are capable of leaning our system of symbols; chimpanzees and gorillas have been taught to use and understand American Sign Language. Humans are unique in having developed written languages—but not all human societies have done so. In general, it is difficult to point to any single quality or ability in human beings that is not shared with some other species, especially with primates, but the degree to which human beings modify themselves and their environment through cultural behaviors has no parallel.
The Hominid Fossil Record
The first pre-human fossil to be named was Australopithecus africanus, meaning the southern ape of Africa. The fossils were found at a site called Taung in South Africa by Raymond Dart, who recognized it as being intermediate between apes and humans......