... the cutting off of populations via physical barriers (for example, mountain ranges) can easily be seen to isolate subsets of genes, with the so-called founder effect, subsequent loss of some genes through drift, etc., understanding how such physical barriers could give rise to rapid speciation has always been fairly straightforward (allopatric speciation).
... there is now an increasing acceptance that sympatric speciation is actually quite common. That means that a population may split into two species even while living in the same area, with no separation or physical barriers.
... evidence was presented of this sort of thing having happened with ease in populations of certain types of fruit-eating insects which used the fruits of their host plant for courtship displays and mating. If one group of insects, used to eating a certain type of fruit, starts to try a new host plant, then food choice becomes linked with mate choice, and so reproductive isolation can begin.
... there is now an increasing acceptance that sympatric speciation is actually quite common. That means that a population may split into two species even while living in the same area, with no separation or physical barriers.
... evidence was presented of this sort of thing having happened with ease in populations of certain types of fruit-eating insects which used the fruits of their host plant for courtship displays and mating. If one group of insects, used to eating a certain type of fruit, starts to try a new host plant, then food choice becomes linked with mate choice, and so reproductive isolation can begin.
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A mutation occurs in its genetics when they are copied from the parents. Most mutations will have no effect worth menitoning. But sometimes, one will have an effect. Like say, a squirrel's scent glands got messed up and it ends up tasting like rotting death. This squirrel is a lot less likely to be eaten, and is much more likely then to reproduce and pass on the genes.
If that gain gives it a big enoug advantage, it could spread across most of the local population. Isolated from others of its kinda for very very long stretches of time, these genetic differnces (and many many more following the same process) would result in what we would call two distinct species.
Sadly, pressing B doesnt make them stay small and cute :(
If that gain gives it a big enoug advantage, it could spread across most of the local population. Isolated from others of its kinda for very very long stretches of time, these genetic differnces (and many many more following the same process) would result in what we would call two distinct species.
Sadly, pressing B doesnt make them stay small and cute :(
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Speciation.
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I would go with pepperoni pizza, it is a crowd pleaser.