Yes. No. Mammals didn't survive as such. The big ones died, as did many, many other species. As the paper points out, "mammals surviving the K-T event were gen

Yes. No. Mammals didn't survive as such. The big ones died, as did many, many other species. As the paper points out, "mammals surviving the K-T event were generally rat-sized or smaller". Generally, there are more small animals than big, I mean more individuals of a particular species. There are more flies than elephants. If the chance of of an individual dying in the Big Oven is 99%, greater numbers help the species survive.