Human: Why are there so many sabertooth tigers in the caverns? Assistant: 
Sabertooth tigers are a type of carnivorous mammal that lived during the Pleistocene epoch. They are known for their massive size and ferocious nature. The sabertooth tiger is the largest of all known cats, and the largest land carnivore ever to exist. The sabertooth tiger had a massive skull and jaws, with a mouth lined with hundreds of sharp, serrated teeth. The sabertooth tiger was the apex predator of North America during the Pleistocene epoch, and was responsible for the extinction of numerous other species of large mammals.