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Marsupialia, Lagomorpha, and Insectivora

Marsupialia, Lagomorpha, and Insectivora. Marie Rhodes. Marsupials. Typically has a pouch Differs from placental mammals in reproductive traits Embryo is born at early stage of development (4-5 weeks). A Marsupial Near You. Virginia Opossum Didelphis virginiana Nocturnal Solitary

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Marsupialia, Lagomorpha, and Insectivora

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  1. Marsupialia, Lagomorpha, and Insectivora Marie Rhodes

  2. Marsupials • Typically has a pouch • Differs from placental mammals in reproductive traits • Embryo is born at early stage of development (4-5 weeks)

  3. A Marsupial Near You Virginia Opossum Didelphis virginiana • Nocturnal • Solitary • Omnivorous • Adaptable • Typically lives 2-4 years

  4. Lagomorpha • Resemble rodents • Herbivores • Four upper incisors • Males scrotum in front of penis • Penis has no bone

  5. Eastern CottontailSylvilagus floridanus • Females are bigger than males • Can have up to seven litters a year • Litters usually consist of three young

  6. Appalachian CottontailSylvilagus obscurus • Found in dense conifer and deciduous forests at upper elevations • Only cottontails known to feed heavily on conifer needles

  7. Snowshoe HareLepus americanus • Found in variety of habitats • Nocturnal • Can have two to five litters per year • Populations fluctuate radically over ten year cycles

  8. American PikaOchotona princeps • Males and females have same size individual territories • Spend most of the day observing their surroundings • Young are independent a mouth after birth

  9. Insectivora • Long pointed snouts • Sharp teeth • Eyes are usually small to absent • Small to medium sized

  10. Shrews in PA • Long-tailed Shrew (right) • Sorex dispar • Smokey shrew (bottom right) • Sorex fumeus • Water Shrew (below) • Sorex palustris

  11. Shrews in PA • Cinereus shrew (left) • Sorex Cinereus • Northern short-tailed shrew (bottom Left) • Blarina brevicauda • Least shrew (below) • Cryptotis parva

  12. Hairy-tailed MoleParascalops Breweri • Occur in a variety of habitats • Prefers loose soils • Eyes are very small • Have no external ears

  13. Star-nosed MoleCondylura cristata • 22 fingerlike appendages surrounding its nostrils • Used for object manipulation • Good swimmers

  14. Hedgehogs • Spines are hollow • Omnivorous • Nocturnal • Five toes on front paws and 4 on back

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