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Devolution, de-evolution, or backward evolution (not to be confused with dysgenics) is the notion that species can revert to supposedly more primitive forms over time. The concept relates to the idea that evolution has a divine purpose and is thus progressive (orthogenesis), for example that feet might be better than hooves, or lungs than gills.
Evolution is the change in the heritable characteristics of biological populations over successive generations. [1] [2] It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. [3]
Cave paintings (such as this one from France) represent a benchmark in the evolutionary history of human cognition. Victorian naturalist Charles Darwin was the first to propose the out-of-Africa hypothesis for the peopling of the world, [40] but the story of prehistoric human migration is now understood to be much more complex thanks to twenty-first-century advances in genomic sequencing.
From the trailblazing product that was Instant Messenger, merger with Time Warner and multiple rebrandings, AOL has faced a long road as it continues to navigate the ever-evolving world of the ...
A living document, also known as an evergreen document or dynamic document, is a document that is continually edited and updated. [1] An example of a living document is an article in Wikipedia, an online encyclopedia that permits anyone to freely edit its articles; this is in contrast to "dead" or "static" documents, such as an article in a single edition of the Encyclopædia Britannica.
Expect ever-evolving NFL to make many changes for next season. Here are some. Sam Farmer. February 12, 2025 at 2:31 PM.
Professor of biology Jerry Coyne sums up biological evolution succinctly: [3]. Life on Earth evolved gradually beginning with one primitive species – perhaps a self-replicating molecule – that lived more than 3.5 billion years ago; it then branched out over time, throwing off many new and diverse species; and the mechanism for most (but not all) of evolutionary change is natural selection.
An evolutionary landscape is a metaphor [1] or a construct used to think about and visualize the processes of evolution (e.g. natural selection and genetic drift) acting on a biological entity [2] (e.g. a gene, protein, population, or species). [3]