There's been a long-standing debate about whether or not the key features that define placental mammals like ourselves emerged in our ancestors before or after the extinction event that wiped out the dinosaurs.
  • Ski
    8•11 months ago

    This is wildly clickbaity. We’ve known forever that mammals existed alongside dinosaurs. Calling it a “human ancestor” is a bit misleading when really it’s more like a rat/cat/dog than a hominid of any kind.