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.
Animals with backbones are called vertebrates. They include all types of fish, as well as amphibians such as frogs and newts, reptiles, birds, and mammals, including humans. Animals without backbones are called invertebrates. They include corals, jellyfish, snails, all kinds of worms, and insects, among many others.