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What is speciation?
The development of a new species.
What needs to happen for speciation to occur?
Populations of the same species become reproductively isolated. The changes in alleles and phenotype a prevent them from successfully breeding together.
What changes can cause speciation?
Seasonal- individuals develop different mating seasons.
Mechanical- changes in genitalia prevent successful mating.
Behavioural- individuals develop courtship rituals that aren't attractive to the main population.
Geographical isolation.
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