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Genetic changes that apparently allow humans to live longer than any other primate may be rooted in a more carnivorous diet.These changes may also promote brain development and make us less vulnerable to diseases of aging, such as cancer, heart disease and dementia.Chimpanzees and great apes are genetically similar to humans, yet they rarely live for more than 50 years. Although the average human life span has doubled in the last 200 years due largely to decreased infant mortality related to advances in diet, environment and medicine even without these improvements, people living in high mortality hunter-forager lifestyles still have twice the life expectancy at birth as wild chimpanzees do.

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Molecular Evolution is the process of change in the sequence composition of cellular molecules such as DNA, RNA, and proteins across generations. The field of molecular evolution uses principles of evolutionary biology and population genetics to explain patterns in these changes.

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Definition of Ontogeny Recapitulates Phylogeny:

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Definition of Ontogeny Recapitulates Phylogeny:

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"Ontogeny recapitulates phylogeny" is a catchy phrase coined by Ernst Haskell, a 19th century German biologist and philosopher to mean that the development of an organism (ontogeny) expresses all the intermediate forms of its ancestors throughout evolution (phylogeny)

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Structures that have no apparent function and appear to be residual parts from a past ancestor are called vestigial. Examples of vestigial structures include the human appendix, the pelvic bone of a snake, and the wings of flightless birds.

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A homologous structure is an example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor. In other words, it's when very different animals have bones that appear very similar in form or function and seem to be related.

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variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce.

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natural selection arising through preference by one sex for certain characteristics in individuals of the other sex.

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Definition of divergent Parallel and Convergent:

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Definition of divergent Parallel and Convergent:

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Diverse evolution is the process of tracing back two or more species to their common ancestor. ... Thus, they become a different species to their ancestors and what was once one species has diverged into two. divergent evolution may be used in contrast to a related term convergent evolution.

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In population gene, Gene flow also known as gene migration is the transfer of genetic variation from one population to another. If the rate of gene flow is high enough, then two populations are considered to have equivalent genetic diversity and therefore effectively a single population.

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The changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations, caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes.

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The process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution.

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V:Variation=choice
I: Inheritance= DNA+Sexual reproduction
S: Selection= Selection+Genetic drift
T: Time= Migration/gene flow