Microevolution is merely evolution, the change in allele frequency over time in a population of organisms, and all animals do this all the time.
Natural selection is always summing up the variation among a population of organisms and selecting those that show survivability and reproductive advantages, even is the selection does no more that stabilize the organisms phenotypes.
Look to the evolutionary history of horses or whales to see clear examples of evolution and selection through time.
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No, all life evolves. Bacteria evolve, viruses evolve, protists evolve, plants evolve, fungi evolve and animals evolve. Evolution is driven by Natural Selection. So, no. The evolution of all life on Earth is driven by Natural Selection: all bacteria, plants, animals, mammals, fish, insects, biochemical pathways, behaviours et cetera evolve by Natural Selection.
Natural selection was not "invented" but rather proposed as a mechanism for evolution by Charles Darwin in his book "On the Origin of Species" published in 1859. Darwin's theory of natural selection suggests that species evolve over time through the process of variation, inheritance, and differential survival and reproduction of individuals with advantageous traits.
Charles Darwin is credited with establishing the Theory of Evolution by Natural Selection through his work "On the Origin of Species" published in 1859. Darwin proposed that species evolve over time through the process of natural selection, where organisms best adapted to their environment are more likely to survive and reproduce.
Species can evolve through natural selection via several mechanisms, including directional selection, stabilizing selection, and disruptive selection. Directional selection favors one extreme phenotype, leading to a shift in the population's traits over time. Stabilizing selection favors intermediate phenotypes, reducing variation and enhancing the population's overall fitness. Disruptive selection, on the other hand, favors extreme traits at both ends of the spectrum, potentially leading to speciation as the population diverges.
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Environmental change and variation :)
Natural Selection
They evolve and adapt so they have traits hat are useful to them, by Natural selection. This means that members of a species that are isolated, well, natural selection makes those with the best chances for survival mate with each other and produce offspring with that trait.
Charles Darwin is associated with the theory of evolution by natural selection, which explains how species evolve and adapt to their environments over time through the process of natural selection. He is best known for his work on the origin of species and the idea that all living organisms are descended from a common ancestor.
Charles Darwin proposed the theory of evolution by natural selection in his book "On the Origin of Species" published in 1859. It states that species evolve over time through the process of natural selection, where individuals with advantageous traits are more likely to survive and reproduce.
No, all life evolves. Bacteria evolve, viruses evolve, protists evolve, plants evolve, fungi evolve and animals evolve. Evolution is driven by Natural Selection. So, no. The evolution of all life on Earth is driven by Natural Selection: all bacteria, plants, animals, mammals, fish, insects, biochemical pathways, behaviours et cetera evolve by Natural Selection.
Darwin called his theory "natural selection" or "survival of the fittest." It explains how species evolve and adapt to their environment over time through the process of natural selection.