@Diplomatic_diva I object to the premise of this list to limit your favourite mammals to 3 is just wrong but here goes.
  1. Duck billed platypus
    Giphy
    For its strangeness
  2. Blue whale
    Giphy
    For its size
  3. Cheetah
    Giphy downsized medium
    For its speed
  4. nough said
    Giphy