∗life adapts, species transform, nature selects relentlessly

that mystery of mysteries, as it has been called by one of our greatest …

I have not been hasty in coming to a decision

Struggle for life most severe between individuals and varieties of the s…

The relation of organism to organism the most important of all relations

∗Charles Darwin's revolutionary 1859 work established the scientific foundation for evolution through natural selection.

Darwin's groundbreaking argument for evolution through natural selection