Mammalian adventures

by Rayeraye1329
Last updated 8 years ago

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Mammalian adventures

All AboutMammals


Animals or Mammalia are classified by the way they reproduce. the two subclasses are mammals and monotremes (egg laying mammals). it has been broken down into placental and non-placental mammals. An example of an egg laying mammal is a platypus or a echidna. Placental animals are the ones whos babies develop within them before being born such as humans.

we are more similar than we think. Take a look at the pig and human fetus below. Don't they look similar?


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