It's about Charles Darwin's journey and discoveries on The Beagle . Also, Darwin believed all species had the same ancestor and evolved from them. There are 2 purposes: to 1. To explaining what natural selection is and how it could produce new species and 2. Respond to objections that those who do not agree with natural selection might have.
Answer:
In 1930s, Mayr and Dobzhansky illustrated the origin of species on the basis of allopatric speciation.
Explanation:
Allopatric speciation also called geographic speciation. This speciation takes place when the populations of the identical kind of species get separated because of the environmental modifications like the building of a mountain, and others. There are four kinds of speciation known that is, sympatric, artificial, peripatric, and parapatric.
