Mammalian evolution: Upwards and onwards

  title={Mammalian evolution: Upwards and onwards},
  author={Anne Weil},
  • A. Weil
  • Published 25 April 2002
  • Biology, Medicine
  • Nature
A newly described fossil sits on one of the lowest branches of the placental-mammal family tree. But its paws and claws suggest that, where actual vegetation was concerned, it could climb further than its contemporaries. 

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