What was the habitat of sabre-tooth tigers?How did sabre-tooth tigers hunt for food?What was the average lifespan of a sabre-tooth tiger?Did sabre-tooth tigers live in packs or alone?How did sabre-tooth tigers communicate with each other?What was the size difference between male and female sabre-tooth tigers?How did sabre-tooth tigers' teeth help them in hunting?What were the main predators of sabre-tooth tigers?How did sabre-tooth tigers adapt to their environment?When did sabre-tooth tigers go extinct?