Ancestor Quote by Christopher McDougall

We didn't evolve through billions of years to remain animals.

— Zoltan Istvan

“It’s important to keep in mind that when viewed against the full scale of our species’ existence, ten thousand years is but a brief…

— Christopher Ryan

It is astonishing to realise that the human species survived hundreds of thousands of years, more than 99 percent of its time on this…

— Leonard Hayflick

“The last 10,000 to 20,000 years have witnessed a period of dramatic growth in human civilization. Indeed, our growth during this time is unique…

— Heidi Cullen

Humans are an infant species, a mere 150,000 years old. But, armed with a massive brain, we've not only survived, we've used our wits…

— David Suzuki

Evolution is as much a fact as the heat of the sun.

— Richard Dawkins

Warm-bloodedness is one of the key factors that have enabled mammals to conquer the Earth, and to develop the most complex bodies in the…

— David Attenborough

“Our close cousins the gorillas and orangs and chimps and gibbon apes have gotten along just fine all this time while eating raw vegetable…

— Kurt Vonnegut

We are inescapably the result of a long heritage of learning, adaptation, mutation and evolution, the product of a history which predates our birth…

— Fred Hoyle

“Nature is the birthright of everyone on Earth. The millions of species we have allowed to survive are our phylogenetic kin. Their long-term history…

— Edward O. Wilson

“Evolution is largely a temporal phenomenon, Merrill. The environment changes, and populations in that environment change in turn, or they languish. Individual organisms don't…

— David Marusek

“The cause of these great extinctions, the most extensive in the seventy-million-year record for mammals, is a mystery. The two prevailing guesses, climatic environmental…

— Stephen J. O'Brien