This document provides information about the characteristics of different groups of vertebrate animals. It discusses the key characteristics of five groups: mammals, birds, fish, reptiles and amphibians. For each group, it identifies whether they are warm-blooded or cold-blooded, how they breathe, their skin/body covering, whether they lay eggs, and other distinguishing features. The document also includes a matching activity to test understanding of which characteristics apply to different types of animals like lizards, bats, pigeons and newts.