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2 days ago · Mammals are vertebrates that feed their young with milk, have hair, and a hinged lower jaw. Learn about the diversity, evolution, and classification of mammals, and see examples of different orders and families.
- Digestive System
Mammal - Digestion, Teeth, Glands: The pressure-pump nephron...
- Classification
The most common remains of mammals are teeth and the...
- Territoriality
Mammal - Territoriality, Adaptations, Behavior: Mammals...
- Circulatory System
In mammals, as in birds, the right and left ventricles of...
- Importance to Humans
Mammal - Pets, Livestock, Research: Humans use mammals for...
- Students
Mammals have existed for the past 200 million years....
- Wallabies
wallaby, any of several middle-sized marsupial mammals...
- Perissodactyla
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- Digestive System
2 days ago · Mammals are characterized by the presence of milk-producing mammary glands for feeding their young, a broad neocortex region of the brain, fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles and birds, from which their ancestors diverged in the Carboniferous Period over 300
2 days ago · The most common remains of mammals are teeth and the associated bones of the jaw and skull. Enamel covering the typical mammalian tooth is composed of prismatic rods of crystalline apatite and is the hardest tissue in the mammalian body. It is highly resistant to chemical and physical weathering.
3 days ago · In the following slides, we'll explore the basic characteristics shared by all (or at least most) animals, from snails and zebras to mongooses and sea anemones: multicellularity, eukaryotic cell structure, specialized tissues, sexual reproduction, a blastula stage of development, motility, heterotrophy and possession of an advanced nervous system.
- Bob Strauss
2 days ago · Marsupials have the typical characteristics of mammals—e.g., mammary glands, three middle ear bones, (and ears that usually have tragi, [3] varying in hearing thresholds [4]) and true hair. [5] There are, however, striking differences as well as a number of anatomical features that separate them from eutherians .
2 days ago · Mammal - Reproduction, Gestation, Lactation: Placental mammals have a placenta that nourishes the embryo, marsupials develop their young in a pouch, and monotremes lay shelled eggs. Young mammals are nourished by maternal milk, and this makes possible a period of training and play, allowing a behavioral adaptability unknown in other organisms.
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1 day ago · The cat (Felis catus), also referred to as domestic cat or house cat, is a small domesticated carnivorous mammal. It is the only domesticated species of the family Felidae. Advances in archaeology and genetics have shown that the domestication of the cat occurred in the Near East around 7500 BC.
