a sabertooth was infact a cat, but it was also a tiger with long chomping teeth that can kill a dinosuar in one bite, including a brachlosuars.
Well, sabertooth tigers are born with tiny front teeth.
they did it
males 5 ft tall 4 ft long females 4 ft tall 3.5 ft long
The saber toothed tiger's large teeth would give it an advantage over a standard tiger.