PPT-Mammals

Unit 3 Mammal classification Mammals are one of the classes of vertebrates All mammals share a series of common characteristics Internal body temperature control Mammary glands Live birth few exceptions. Monotremes. Luo. et al. (2002).. Node labeled 1 indicates our (stable) . clade. -based definition of . Mammalia. .. This is the commonly used crown-. clade. definition.. Luo. et al. (2002).. We’ll look first at the . Learn all about these amazing creatures.. By: Alissa Cattron. What Is A Mammal?. Mammals are animals that have hair, are warm-blooded, and nourish their young with milk.. Some modern-day mammals include people, apes, dogs, mice, elephants, pandas, and many more.. Vertebrates. 350 m.y.a. vertebrates invaded land. Decendents of bony fish . Land vertebrates had to adapt to harsher conditions on shore. Tetrapods had to develop lungs that allowed for absorption of oxygen directly from air. . Pages 557 - 573. Mammalia is one of the smallest classes under . K. ingdom Animalia. However, it contains most of what we call “animals” today. Mammalia also contains humans. There are 26 orders under Class Mammalia (12 are under placental mammals). The CaseAgainstMarine Mammals in Captivity By . Terron. Spence, Lucas . Amiro. , Travis Wentzell and . Daramfon. Morgan. Introduction. 21 . different groups . of mammals. Similar . features . Found . in all environments. Evolution. Characteristics. Class Mammalia . Phylum . Chordata. . 1. . Hair or fur. :. a. keratinized derivative of the skin. b. uniquely mammalian. c. hair coat also called a . pelage.. kinds . of hair: . guard hairs. . ,function. By . Ka’Mauri. . and . Elaina. Hedgehogs are mammals. They are nocturnal and can swim fairly well.. Where Hedgehogs Live. . The shading . shows where hedgehogs live. The . darker the . color . the greater the number of species. Chapter 16. Birds. Birds belong to the class Aves.. Aves comes from the Latin word for bird. .. First appeared on Earth 150 million years . ago. Section 1. Bird Characteristics. S. hare some characteristics with reptiles. h. afsascreativecorner.weebly.com. The Grizzly bear is sometimes called the Silvertip . bear.. They are powerful predators and are . mammals.. Introduction. Grizzly . bears can be found in woodlands, forests, alpine meadows and prairies. In many habitats they prefer . Marine Vertebrates:. Mammals. Marine Mammals. Carnivora. Sea otters, polar bears. Pinnipeds. Seals, sea lions, walruses. Sirenians. Manatees, . dugongs (sea cows). Cetaceans. Porpoises, dolphins, whales. Introduction. I´m. . going. . to. . talk. . about. :. Mammals. .. What. . they. . eat. .. Their. . body. . covering. .. What. are . they. .. How. . they. reproduce. . AND. HUMAN BEINGS. Ancestors that dominated the Permian And Early Triassic. “Triassic Takeover”. . - Dominance of dinosaurs may have driven some . therapsids. to a nocturnal, insectivorous lifestyle.. . - this may have selected for hair and . One type of animal that made a successful and complete transition from land to water in the course of its evolution is the whale. .. . The According to the fossil record, about 50 million years ago some terrestrial mammals began to make the transition from a life on land to a life in the sea. .