Definition
Hugo de Vries (1848-1935) was a Dutch botanist and geneticist. He is recognized for independently rediscovering Mendel's laws of inheritance and proposing the mutation theory of evolution. Think of him as a puzzle solver who found missing pieces of a big picture. De Vries emphasized that new species could arise suddenly through large mutations. His ideas contributed significantly to the development of genetics as a distinct science. He helped explain how variations arise within populations.