👉 Mammals are animals that have four limbs, including two front legs and two hind legs. They are typically small in size compared to other animals, with some species reaching up to 10 meters (33 feet) in length. Mammals include mammals like humans, dogs, cats, and cows. They also include their close relatives, such as bears, wolves, and wolves. These animals have a number of similarities, including the ability to breathe through gills or lungs and the