Mammalian refers to a class of animals known as Mammalia, which are characterized by having hair or fur and the ability to produce milk to feed their young. This group includes a wide variety of species, such as humans, dogs, whales, and elephants. Mammals are warm-blooded, meaning they can regulate their body temperature, and they typically give live birth, with a few exceptions like monotremes. Mammals have a complex brain structure, which allows for advanced behaviors and social interactions. They possess specialized teeth for different diets, ranging from herbivorous to carnivorous. Mammalian species are found in diverse habitats across the globe, showcasing a wide range of adaptations that help them survive in their environments.