mammals

Definition of mammals in English English dictionary: Warm-blooded animals, excluding birds, that have hair, produce live young, and nurse their young; A mammal is an animal that feeds its babies on the mother’s milk All mammals are warm-blooded That means their body temperature remains about the same all the time, even though the temperature of their surroundings may change Dogs, cats, kangaroos, koalas, quolls, gliders, fruit bat, dingoes, fur seals, echidnas and platypuses are mammals; Plural of mammal; A class under the phylum vertebrata, adapted to life on land, water and in air, characterized by the presence of hairs, for insulation
mammal: An animal of the class Mammalia, characterized by being warm-blooded, having hair and feeding milk to its young
hoofed mammals: group of mammals that have one hard developed toe on each foot
mammal: A warm-blooded animal that breathes air, has hair and feeds its young with milk
mammal: One of the Mammalia
mammal: Class of vertebrate animals which give milk to their young; mammals are warm-blooded
mammal: Group of warm blooded animals Common characteristics found in these organisms include: hair, milk secretion, diaphragm for respiration, lower jaw composed of a single pair of bones, middle ear containing three bones, and presence of only a left systemic arch
mammal: Mammals are animals such as humans, dogs, lions, and whales. In general, female mammals give birth to babies rather than laying eggs, and feed their young with milk. a type of animal that drinks milk from its mother's body when it is young. Humans, dogs, and whales are mammals. (mammalis , from mamma ). Any member of the class (Mammalia) of warm-blooded vertebrates having four limbs (except for some aquatic species) and distinguished from other chordate classes by the female's milk-secreting glands and the presence of hair at some stage of development. Other unique characteristics include a jaw hinged directly to the skull, hearing through bones in the middle ear, a muscular diaphragm separating the pectoral and abdominal cavities, and nonnucleated mature red blood cells. Mammals range in size from the tiny shrew to the enormous blue whale. Monotremes (platypus and echidna) lay eggs; all other mammals bear live young. Marsupial newborns complete their development outside the womb, sometimes in a pouchlike structure. Placental mammals (see placenta) are born at a relatively advanced stage of development. The earliest mammals date from the late Triassic Period (which ended 206 million years ago); their immediate ancestors were the reptilian therapsids. For 70 million years mammals have been the dominant animals in terrestrial ecosystems, a consequence of two principal factors: the great behavioral adaptability provided by the ability of mammalian young to learn from their elders (a consequence of their dependence on their mothers for nourishment) and the physical adaptability to a wide range of climates and conditions provided by their warm-bloodedness. See also carnivore; cetacean; herbivore; insectivore; omnivore; primate; rodent
mammal: A vertebrate with three bones in the inner ear and one in the jaw
mammal: n a warm blooded vertebrate animal that brings forth its young alive and suckles them
mammal: Animals in the class Mammalia that are distinguished by having self-regulating body temperature, hair, and in females, milk-producing mammary glands to feed their young
mammal: the common name for the warm-blooded animals of the Mammalia class, includes humans and any other animal that nourishes its young with milk, has hair, and has a muscular diaphragm
mammal: ~warm-blooded animal with a backbone and fur or hair, and that feeds its young with the mother's milk
mammal: a class of warm-blooded vertebrate animals that have, in the female, milk-secreting organs for feeding the young
mammal: any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk
mammal: Any of a class of higher vertebrates whose bodies are covered with hair, who give birth to live young, nourish their young with milk from mammary glands, regulate their body temperature internally, have four types of well-developed teeth and typically have four well-developed legs with toes that have nails, claws or hoofs
mammal: an animal that feeds its young with milk secreted from mammary glands and has hair on its skin
mammal: {i} member of the class Mammalia (class of warm-blooded vertebrate animals the female of which secrete milk to feed their young and characterized by a covering of hair on their bodies)
mammal: The highest class of animals including humans, which suckle their young