Why is the work of Alfred Russell Wallace considered when discussing the theory of evolution?

The wolr of Alfred Russell Wallace in considered when discussing the theory of evolution, becasue he was the first scientific who discovered the theory of natural selection.

Explanation:

Natural selection is the study of how some species persist or survive over time, and how some other don't. Natural selection is as the names indicates, a selection made by nature itself.

The theory of evolution considers natural selection as a very importan part of the study of the evolution. Since the evolution is the study of the species and the tranformorations of them. Natural selection is one of the theories that respond to why some species lasted and other didn't.