In The Principles of Newspeak, the appendix to the 1949 novel, Orwell explains that Newspeak usage follows most of the English grammar, yet is a language characterised by a continually diminishing vocabulary; complete thoughts reduced to simple terms of simplistic meaning.
Animals with an internal skeleton made of bone are called vertebrates. Vertebrates include fish, amphibians, reptiles, birds, mammals, primates, rodents and marsupials.
Herptiles are vertebrates and include both reptiles and amphibians. The animal world is inhabited with approximately 58,000 species of vertebrates, which seems like a lot, yet is only about 3% of all animal species. Invertebrates make up the bulk of the animals at 97% of the species.