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Because that is how evolution works. If one species adapts, it can eventually become so different as to be unrecognisable for what it was (given enough time). recent common ansester
Isolation of population and impact of climate change creates speciation. It is the method of slow change of one species to another.
Two species evolving alongside one another, each one adapting according to selection pressures from the other one; a good example of coevolution is between a parasite and host species, and between predator and prey. If a prey species develops a way to better escape a predator species, that predator species, in response, will have to develop a better way to capture the prey.
The difference is one of scale and scope. This is best explained using a single species and its descendants as an example:Every change that happens to the species up to the point of speciation would be classified as "micro-evolution". But after speciation, divergence would not stop: the two new species would continue to diverge from one another, possibly resulting in yet more branching events, more new species. The scope would increase to include all of those as well. At this scale, we're talking about "macro-evolution". When we zoom in on one of those newly emerged species, we can see that the resulting "macro-evolution" is still being generated by the cumulative effects of "micro-evolution" within each individual population.
Darwin only had one theory of evolution, and he defined it in his book On The Origin of Species.
macroevolution is the evolution of one species to another.
Because that is how evolution works. If one species adapts, it can eventually become so different as to be unrecognisable for what it was (given enough time). recent common ansester
bvggj
A simple coevolution explanation here. A population of rabbits that is running faster, on average, over time is going to affect the population of foxes that pursue the rabbits as food. Some foxes will have variations that lead to faster running and these foxes will be the ones that are reproductively successful and give rise to following generations of foxes.
It is when one species copies the behavior or appearance of another, un-related species, to fool predators.
Isolation of population and impact of climate change creates speciation. It is the method of slow change of one species to another.
evolution
Parallel evolution: two (or more) species or genera that evolve in similar ways over time. Divergent evolution: two or more closely related species or genera that evolve to become quite different from one another. Convergent evolution: two or more unrelated and dissimilar species or genera that evolve to become similar to one another, for example penguins (birds that used to fly), dolphins (mammals that used to walk on land) and fish (animals that were always swimming)
converged evolution
"Devolution" is a misunderstanding. Species evolve over time, as mutations appear and spread and individuals reproduce and die. Evolution tends to produce species that are fairly well adapted to their environment, but they cannot be said to be "better" than any other species. "Devolution" is the idea that species may somehow regress or become more primitive, but any such change is simply another example of regular evolution. Evolution is not graded, so one species cannot be said to be more evolved than another.
Because it is one species evolution effecting that of another, this creates an interdependence. It is important to our understanding of biology as well as natural selection.
Speciation is the process by which new biological species arise. It is part of the evolutionary process; how two or more populations of one species, when separated geographically, can gradually change over time in different ways, to become separate species.