I seem to remember reading that this giant croc is estimated to have gone extinct about 65,000,000 years ago (together with the rest of the big dinosaurs). Humans, by the most generous estimate, don't go back more than about 4,000,000. Bit of a gap there.
If you want big things with lots of teeth, how about orcas (killer whales)? And never forget the box jellyfish. Gram for gram, they're actually the most effective killing machines on earth. Not very macho, but effective (as is so often the way?). |