mammalian adaptations

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Mammalian Adaptations. MONOTREMES “Egg laying”. Duckbilled Platypus Anteater Echidna. Platypus/echidna Images from: MARSUPIALS Premature babies develop in pouch. - PowerPoint PPT Presentation


  • Mammalian Adaptations

  • MONOTREMESEgg layingDuckbilled PlatypusAnteaterEchidnaPlatypus/echidna Images from:

  • MARSUPIALSPremature babies develop in pouch

    Most found in Australia/ New GuineaKangarooWallaby

    Image from:

  • MARSUPIALSOnly North American MarsupialOppossum

  • PLACENTALEmbryos nourished inside mother by placenta95% of all mammals are placental

    At least 18 ordersImage from:

  • Specialized teeth vary with diet

  • Grass eaters have different teeth than carnivores

  • INCISORS- cutCANINES- grip, puncture, tearPREMOLARS- shread, cut, grindMOLARS- grind, crushImage from:

  • BALEENThin keratin plates that hang from the roof of the mouth and screen food from waterBaleen Image from:

  • EcholocationBats can fly without eyes, but NOT without earsBats emit high frequency sound waves that bounce off objects

    Can determine size, distance, direction, speed

  • ECHOLOCATIONAlso used by some kinds of whalesImage from:

  • RUMENIn cud chewers like cows, sheep, goats, giraffes

    First chamber of stomach containing bacteria to digest plants

  • CECUMIn NON cud chewers like horses, rabbits, rodents, elephants

    Small pouch off small intestine containing bacteria to digest plants

  • Human appendix is vestigial cecum

  • PRIMATESLarger BrainGrasping hand with fingernails instead of claws2 forward facing eyesIncludes:GorillasChimpsMonkeysLemursGorilla Image from:

  • PRIMATESHumans are primates too!

  • PINNIPEDSCarnivores streamlined body flipper limbedSeals WalrusesSea lions

  • UNGULATESMammals with Hooves

    Artiodactyla Even number of toes Moose, bison, deer, elk, goats, pigs, camels, sheep, cows PerissodactylaOdd number of toesHorses, zebras, rhinos

  • CETACEANSIncludes: whales, dolphins, porpoises

  • PROBOSCIDEAProboscis: Boneless trunked nose

    Only 2 species Asian elephant African elephantImage from:

  • CHIROPTERABATSOnly mammals that can fly