SYMPATRIC SPECIATION The evolution of new species from one
ancestral species by living in the same habitat is called sympatric speciation.
The main mechanisms resulting in sympatric speciation involve changes in the
chromosomes of the organism. One way this happens is when there is a serious error that occurs during cell division resulting in more than one copy of a chromosome(s), or the loss of a chromosome(s), in one of the daughter cells. This condition is known as
aneuploidy.
