It is generally accepted that the astonishing diversity of life on our planet is the result of a process called evolution, which drives organisms to change gradually over time . While the basic concept of organisms evolving is not a difficult one, understanding how evolution works, and how evolutionary theory was developed, is more complex.
Evolution is the process by which successive generations of organisms change. It is the reason we have many different species on the planet.
"Evolution is driven by the fact all organisms have to struggle to survive long enough to reproduce in a world filled with predators, disease, and competition for resources"
