Paleolithic Mating System

For many years there has been a debate over where modern humans originated from. The first theory, out of Africa, discusses modern humans evolving in Africa. They migrated out to Eurasia and as the time went on their species evolved independently and developed into distinct species. All other human populations were eventually replaced with no interbreeding involved in the process and Homo sapiens had successfully dominated the rest of the world. On the other hand, the second theory, regional continuity, says that our earliest hominid ancestors had departed Africa and spread into other parts of the world later evolving into modern human beings. In this paper I will discuss the Regional continuity theory and elaborating on the Out of Africa theory. Evidence based on fossils, artifacts, and other crucial components will be discussed. Based on the evidence found I will come to a conclusion as to which theory I think best fits the origins of humans.

There are many theories that try to explain relationships between sexual selection and human reproductive behaviour. Evolutionary theory is one such theory.

Marriage is a fundamental practice that influences village dynamics and political processes in many societies in past and present human cultures. Not only is marriage a process that supports human kinship systems, it allows for alliances and reciprocity systems between groups that create variation in human social organization (Walker et al. 2011). This paper explores the sources of variation in marriage and mating systems in two very different societies, the !Kung San and the Yanomamo, in terms of the vastly different environments each of them inhabit. The !Kung San, a traditional nomadic hunter-gatherer society, reside in the Dobe area on the edge of the Kalahari desert of Botswana (Shostak 1981, p.7). Due to the demanding environment of

“Despite intense research efforts, no consensus has been reached about the genetic relationship between early modern humans and archaic human forms such as the Neanderthals” (Serre, 16 March 2004). It is a

Neanderthals lived from 130,000-30,000 years ago and were part of the Archaic Homo sapiens; meaning the Homo neaderthalensis were an earlier member of the modern humans. The living range for the Neanderthals located from Europe to the Middle East. About 50,000 years ago modern humans started to migrate from Africa to Europe and the Middle East, thus causing Neanderthals and modern humans to interbreed. In the two articles “Researchers shed light on Neanderthals’ legacy in humans” and “Surprise! 20 Percent of Neanderthal Genome Lives On in Modern Humans, Scientists Find” they discuss how some genes and phenotypes found in Neanderthals were also expressed in non-African descent modern humans and reason behind it. The study between the Neanderthals

Finally the researchers were able to conduct new experiments by examining the DNA from archaeological skeletons and contrasted them with coexisting Europeans with the use of computer simulations. Since the change in genetics was difficult to explain because of the randomness of inheritance, researchers were able to conclude that the positive selection played a main role in the change of people.

Professor David Lordkipanidze presented some highly interesting information regarding our ancestry as humans. He is an internationally renowned scientist and paleontologist, and it was a great privilege to hear about his work in the Dmanisi where he led the discovery and analysis of the earliest human found outside of Africa.

While there were many genetic differences found between Neanderthal and modern human DNA, there was also a number of genetic overlap. Genomes were taken and sequenced from Africans, New Guinean, Han Chinese, and French (Green et al. 2010). Genetic overlap and similarity was found among the French, New Guinean, and Han Chinese but there was no significant similarity found between the African genomes (Green et al. 2010). In addition, data was taken based on haplotypic differences. If there was considerable gene flow from Neanderthals to modern humans, it would be suspected that there would be similarities between Neanderthals and non-African haplotypes when compared to African haplotypes. The data found that there were haplotypes found among

According to physical evidence, and theories, scholars have concluded upon a whole hypothesis. Based on their knowledge and belief, modern humans diverged from Homo sapiens between 200,000 and 150,000 years ago specifically in Africa, that between 125,000 and 60,000 years ago members of Homo sapiens left Africa, and that these

Males and females differ considerably in how much they each invest in order to make offspring and a result of this, they approach mating with different methods. Researchers and scientists learn and examine these varying mating systems to explain how males and females pair up. A mating system explains the techniques males and females use to pair up when selecting a mate. It is important to begin by reviewing and understanding the reproductive strategies among primates. The major types of mating systems found in primates are monogamy and polygamy. Monogamy is a practice of mating in which one male pairs with one female. Polygamy also known as bisexual, is a pattern of mating in which a male mates with more than one female and a female mates with more than one male (Wong , 2010). Polygamy is then clarified into polygyny and polyandry. Polygyny is when one male mates with multiple females. Polyandry is when one female mates with multiple males. Recognizing the diversity of mating systems will help in understanding the interactive relationship of sexual size dimorphism and behavior in primates.

Some scientists believe (Duarte et al., 1999) that Neanderthals and modern humans not only interbreed in Europe but Neanderthals are the biological and cultural evolutionary transition between archaic and early modern

Another evolutionary explanation of gender development is mate choice, which suggests that gender role behaviours are related to reproductive strategies. It is thought that men will look for women who are young whereas women are usually more interested in the resources of a mate. This can be explained from an evolutionary perspective as mating with a physically attractive woman

The first few chapters discuss in depth both the general rules for mate selection and the differences in mate selection and varying preferences for male and female genders. As explained in the intro the author theorizes that the current behavior of humans in relation to mating behavior can be linked to our evolutionary past. He references Charles Darwin 's theory of evolution and his idea of natural selection, which is the the process through which organisms adapt to their environment and in doing so tend to

Human evolution is the gradual process in which people, or Homo sapiens, originated from apelike ancestors. Scientific evidence, particularly in the form of fossils and secondary remains, show that the physical and behavioral traits shared by all people evolved over a period of approximately six million years. Humans are primates. Both genetic and physical similarities show that humans and the great apes (large apes) of Africa, chimpanzees (including bonobos, or so-called “pygmy chimpanzees”) and gorillas share a common ancestor that lived between 8 and 6 million years ago. The volume of fossils found in Africa suggests that most evolution occurred there and is likely the place of origin for early humans. This brings to fruition the “out of Africa” theory, also called the “single-origin hypothesis.”

There has been a great deal of heated debate for the last few decades about where modern Homo sapiens originated. From the battle grounds, two main theories emerged. One theory, labeled “Out-of-Africa” or “population replacement” explains that all modern Homo sapiens evolved from a common Homo erectus ancestor in Africa 100,000 years ago. The species began to spread and replace all other archaic human-like populations around 35,000 to 89,000 years ago. The rivaling opinion, entitled the “regional continuity” theory or “multiregional evolution” model refutes this theory and states modern humans evolved from various species of Homo erectus who interbred with others that lived in