the.com/darwinism

means The theory that species change over generations through natural selection, as traits that help survival and reproduction get passed on more often than those that don't.

from Named after Charles Darwin, the 19th-century naturalist who laid out the theory in 'On the Origin of Species' (1859) after years of observing finches, barnacles, and breeders' tricks with pigeons. The word 'Darwinism' itself was coined shortly after by others popularizing and arguing over his ideas — notably Thomas Huxley, dubbed 'Darwin's bulldog' for defending the theory so fiercely. Worth noting: the term later got stretched into 'Social Darwinism,' a political misuse of his biology that Darwin himself never endorsed.