Class MammaliaSlide 2Slide 3Mammal TaxonomySlide 5Slide 6Mammalian Integument & GlandsMammary GlandsFurHornsAntlersMammal SkullFormation of a Hard PalateSkull DiversificationDentitionCarnivore Digestive TractsHerbivore Digestive TractsMigratory Land MammalsMigratory Sea MammalsSonarMammalian Reproduction ModesReproductive CyclesMarsupial Reproductive CyclesGestational & Lactational Differences between Marsupials & MammalsGestation PeriodsDomesticationProsimian PrimatesHominidaeHuman TaxonomyHuman Ancesteral LineagesClass MammaliaMammal Taxonomy•Class Mammalia–Subclass Prototheria–Order Monotremataduckbilled platypusspiny echidnaTachyglossus aculeatuslong beaked echidnaZaglosssus bruijniOrnithorhynchus anitinusMammal Taxonomy•Class Mammalia–Subclass Theria•Infraclass Metatheria–Order MarsupialiaKoalaPossumKangarooTazmanian DevilDidelphis virginianaMammal Taxonomy•Class Mammalia–Subclass Theria•Infraclass Eutheria–Order Rodentia–Order Chiroptera–Order Insectavora–Order Carnivora–Order Primates–Order Artiodactyla–Order Lagomorpha–Order Cetacea–Order Perissodactyla–Order Sirenia–Order ProboscideaOrder TubulidentataOrder XenarthaOrder PholidotaPangolinOrder HyracoideaHyraxMammalian Integument & Glands•Sebaceous•Sweat•Scent•MammaryMammary GlandsFur•Pelage–Underhair–Guard hairs•1 or 2 molts/yrHornsAntlersMammal SkullFormation of a Hard PalateSkull DiversificationDentition•2 sets–Milk teeth (deciduous)–Permanent teeth•Rodents & lagomorphs–Teeth continuously growCarnivore Digestive TractsHerbivore Digestive TractsMigratory Land MammalsMigratory Sea MammalsSonarMammalian Reproduction Modes•Prototherians (monotremes)–Oviparous–Hatchlings mature in pouch and suckle from mammary gland•Metatherians (marsupials)–Vivparous–Very immature young mature in pouch and suckle from mammary gland•Eutherian (placentals)–Vivaparous–Precocial & altricial young–Suckle youngReproductive Cycles•Estrous cycle–Time of ovulation following a peak in estrogen production (estrus)–Monestrous•1 ovulation period per year–Polyestrous•Multiple ovulation periods per year•Menstrual cycle–Estrus followed by menstruation–Shedding of uterine lining–Only in humans, apes, & old world monkeysMarsupial Reproductive CyclesGestational & Lactational Differences between Marsupials & MammalsGestation Periods•Large mammals (herbivores)–Longer gestations–Precocial newborns•Small insectivores, rodents, carnivores–Shorter gestations–Altricial newborns•Sightless•HairlessDomesticationProsimian PrimatesHominidaeHuman TaxonomyKingdom AnimaliaPhylum ChordataSubphylum VertebrataClass MammaliaOrder Primates Family HominidaeGenus Homo Species sapiensHuman Ancesteral