Is the Sabre tooth tiger really a tiger?

it is a big cat that lived a real' long time ago and had massive fangs producing from its mouth. They are canivores, which eat meat. They are classified as Smilodons. Their mouth opens up to 120 degrees while modern tigers only open up to 65 degrees. Saber tooth or toothed Tigers are muscular and rather slow.They eat large prey. Canine teeth are 20cm or 8 inch.s long. By the way this info was produced by an 11 year old!
A saber tooth tiger is a different form of a tiger. It was a tiger before the regular tiger today. It lived in the ice age only in specific places. They were always a orange-yellowish color. It was a fierce animal with huge teeth. It mostly ate humans and wooly mammoths.