They lived during the ice age meaning the saber toothed tiger's environment consists of icy lands and maybe grasslands.
- It inhabited in the temperate regions of North America. Such regions were rich in vegetation such as woods, shrubs and grasses. These vegetation rich areas were home to large herbivores like bison, antelope, horses, camels, deer, mastodons, mammoths and ground sloths, most of which were their main source of food.
Source: Saber Tooth Tiger Habitat
They lived in the dry wet lands.
Because they hunt the little animals