Comment on Mammal

• Zachariah@lemmy.world ⁨1⁩ ⁨week⁩ ago

  breathes in oxygen
  breathes out carbon dioxide
  ?

  source
• LifeInMultipleChoice@lemmy.world ⁨1⁩ ⁨week⁩ ago

  explorersweb.com/cold-blooded-mammals/

  Does it count if we killed off the last of the cold blooded mammals?

  source