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edpell
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Is it culture or genes or both that drive some groups to have high completed family sizes?
It's both. There is a sustainability factor within nature for a large or small family. The idea is that parents that do not nurture infants, like ants will produce more than parents who spend the energy to nurture their infants, like humans. This is usually controlled through evolution depending on resource usage, space, etc. There is usually a limit for every speciesedpell said:Is it culture or genes or both that drive some groups to have high completed family sizes?
The current understanding of human evolution is that humans evolved from apes and share a common ancestor with other primates. This process of evolution has taken millions of years and is still ongoing.
Scientists study human evolution through a variety of methods, including genetic analysis, fossil evidence, and comparative anatomy. They also use techniques such as radiometric dating and molecular biology to understand the timeline and processes of evolutionary changes.
Some examples of recent human evolution include lactose tolerance, the ability to digest alcohol, and the development of resistance to certain diseases. These changes have occurred within the last 10,000 years due to natural selection and adaptation to changing environments.
Yes, human evolution is an ongoing process. While the physical changes may not be as drastic as they were in the past, humans are still evolving in response to their environment and the pressures of natural selection.
Human evolution is a part of the larger theory of evolution, which explains how all living things have evolved and diversified over time. The principles of natural selection, genetic variation, and adaptation apply to human evolution just as they do to any other species.