A population of lizards were living in an area that began to experience a great amount of mountain building. As the mountains formed some lizards were on one side of the mountains and the rest were on the other side of the mountains. Over a period of many years the lizards were no longer able to breed, or had become different species. Why did this happen?

Respuesta :

They became adapted to their new environment and became new species which then were not able to produce fertile offspring.

In order to live in certain conditions the lizards had to adapt to the area in order to live. From adapting they are no longer able to breed.