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Speciation and Genes
Speciation is a process where evolution leads to a new species
...
Speciation has two stages:
1
...
This happenswhen
changes in the environment, caused by floods, earthquakes or formation of mountains,
create a physical 'barrier' that geographically isolates individuals from the main
population
...
21
...
For examplethey may have
different climates
...
Eventually, the individuals from each population change so much that they are unable to
breed with each other to produce fertile offspring
...
The diagrams below show the stages of speciation
...
1
e
A new species
develops
...
3
There ere two populations
of the same species
...
2