This document provides information about different mammal orders and families. It discusses the orders Tubulidentata (aardvarks), Perissodactyla (horses, tapirs, rhinos), and Cetacea (whales, dolphins, porpoises). For Cetacea, it describes the two suborders Mysticeti (baleen whales) and Odontoceti (toothed whales) and lists several families within each suborder. It provides the scientific names for many whale, dolphin, and other mammal species.