Member when mammals ruled the world?
Which mass extinction was the mistake, PT or KT? If all species were alive today in it around their respective environmental niches, who would outcompete the others? Would mammals or reptiles reign supreme (humans not withstanding)?
Which mass extinction was the mistake, PT or KT? If all species were alive today in it around their respective environmental niches, who would outcompete the others? Would mammals or reptiles reign supreme (humans not withstanding)?
