Tom Regan. “The Philosophy of Animal Rights”. Retrieved May 6th, 2008 – “The philosophy of animal rights is scientific
Explanation: The philosophy of animal rights is respectful of our best science in general and evolutionary biology in particular. The latter teaches that, in Darwin’s words, humans differ from many other animals “in degree,” not in kind.” Questions of line drawing to one side, it is obvious that the animals used in laboratories, raised for food, and hunted for pleasure or trapped for profit, for example, are our psychological kin. This is no fantasy, this is fact, proven by our best science.
Charles Darwin – “There is no fundamental difference between humans and the higher mammals in their mental faculties”