Darwin’s Five Major Theories of Evolution

Mayr recognized that Darwin’s theory really consisted of five components. Summarized from his book “What Evolution Is” (2001), they are as follows:

1. The non-constancy of species (The basic theory of evolution)

Today this is commonly referred to as change over time.

2. The descent of all organisms from common ancestors (branching evolution)

Also known as “common descent”. It refers to the fact that evolutionist believe that all living things, from fish to fungi, to fruit, to bacteria, to birds, to humans, to trees and any other thing you can think of regardless how different – all of them arose from a single ancestor. Put another way, evolutionists truly believe we are all distant cousins to worms, roaches and snakes. Read More