No, we wouldn’t exist. The extinction event cut dinosaurs down to size-only small ones, birds, made it out. Without dinosaurs, mammals can reach significant sizes. Humans are fairly large-most Paleocene mammals were the size of rabbits and mice, and only near the end do we have animals the size of horses, rhinos, etc. If large predator dinosaurs still existed, primates would be forced to remain small and/or arboreal. Living on the plains would be suicide-even the largest sabertooth cat of the Pleistocene would be less than 1000 lbs, while multi-ton theropod predators were common during most of the age of dinosaurs. We wouldn’t even have had the chance to become a species if dinosaurs had survived, as the bulk of mammalian animals during Dino’s rule were kept in check from diversifying. While dinosaurs roamed freely conquering the land, trees, seashore and air, mammals lived secretive lives as mainly inconspicuous small creatures hiding in crevices and holes.
Объяснение:
No, we wouldn’t exist. The extinction event cut dinosaurs down to size-only small ones, birds, made it out. Without dinosaurs, mammals can reach significant sizes. Humans are fairly large-most Paleocene mammals were the size of rabbits and mice, and only near the end do we have animals the size of horses, rhinos, etc. If large predator dinosaurs still existed, primates would be forced to remain small and/or arboreal. Living on the plains would be suicide-even the largest sabertooth cat of the Pleistocene would be less than 1000 lbs, while multi-ton theropod predators were common during most of the age of dinosaurs. We wouldn’t even have had the chance to become a species if dinosaurs had survived, as the bulk of mammalian animals during Dino’s rule were kept in check from diversifying. While dinosaurs roamed freely conquering the land, trees, seashore and air, mammals lived secretive lives as mainly inconspicuous small creatures hiding in crevices and holes.