The book challenges various "sacred" scientific theories. These include that of the mass extinction of all flying reptiles, numerous orders of swimming reptiles, and the mass extinction of "mega fauna", including the woolly mammoth and the sober toothed cat. As well, the author maintains that there is one species of whale which still has legs, and is currently walking the earth. He also states that the bipedal ape known as "Sasquatch" is also very much alive, and is nothing other than a separate species of human. Readers are invited to take part in locating these huge animals. The directions are clear and simple.

The denial of the existence of these animals, by the scientific community, is due to the fact that we live under a state of capitalism. The alternative is scientific socialism. The capitalists must be overthrown and crushed under the Dictatorship of the Proletariat.