Speciation

• Speciation - the process of a new species developing by natural selection, where the species are split into two separate populations, which won't be bale to reproduce to make a fertile offspring.
• Process of speciation;

  1. Populations are isolated by for example a physical barrier.
  2. Overtime as populations adapts to environment and as natural selection will favour different alleles on each side.
  3. Over many generations the populations will begin to change.
  4. If the physical barrier changes and allows for the two populations to mix again, then due to the different phenotype they will be unable to reproduce a fertile offspring.