The zoologist St. George Jackson Mivart was born in London. An Anglican, he came to Catholicism in a journey that was similar to that of John Henry Newman. He accepted the historical fact of evolution, although he was not satisfied with what at the time were considered its mechanistic assumptions; at the same time, he sought to investigate what any possible relationship could be between natural selection and creation. In 1871, he published On the Genesis of Species, which is chiefly a critical acceptance of natural selection. In the work he highlights the theory’s limits in relation to the historical event of the evolution of living beings, and consequently thinks natural selection must be associated to other biological factors.