Monotremes

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Monotremes Marsupials
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Monotremes

• Lay eggs with thick leathery shells
• Eggs incubated by mother
• No nipples lick the milk from hair and skin
  around mothers mammary glands
• Only 3 species
• Echidna (short long-beaked)

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Platypus

• Only one species
• Lives in Australia
• Swimming mammal
• Feeds in rivers ponds
• Webbed feet
• Flat tail
• Flat rubbery bill
• Uses claws to dig tunnels in river banks for
  laying eggs

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Marsupials

• Koala, kangaroo, wallaby, bandicoot, quokka,
  quoll, tasmanian devil, tasmanian tiger
• About 280 species
• Pouched mammals
• Give birth to tiny offspring
• Only North American marsupial is the ?
• opossum

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Pouch

• Young born days after fertilization
• 3 days after fertilization a baby kangaroo climbs
  from its mothers womb to her pouch it is about
  the size of a peanut
• The young marsupials latch onto a nipple in the
  pouch and start drinking milk

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Endangered Extinct

• At least 22 marsupials now extinct in Australia
• Many more are currently endangered
• THREATS imported exotic species of rabbits,
  foxes, cats
• Habitat destruction has also hurt marsupial
  populations
• Tasmanian Tiger
• Diprotodon

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The End