The key to survival for the tiger is to hunt. Tigers prefer to hunt alone, that way they can rely on their own hunting skills to get enough nourishment. Even though they hunt by themselves, they will usually share their food with others. Tigers are most likely to hunt in the late afternoon to nighttime. Tigers usually hunt large prey. They will hunt wild pigs and deer, also small prey like monkeys and frogs. Hunting is hard work. A tiger may stalk 20 animals, before it finally catches one. But then the tiger rests for a few days, because tigers only have to hunt about once a week.
You may think that tigers can run for a long period
of time, but the fact is tigers are 
not
built for long-distance running. Most of their prey can out run them. The
way they attack their prey is first, they'll camouflage themselves in bushes
or grass then, sneak up on the prey with its belly dragging on the grass.
Finally, they'll attack with a burst of power and speed. The animal's dead
body is called a carcass.
Tigers eyes are in front of the head and not on the side like rabbits or deer because tigers use their eyes to follow the movements of their prey. This is the opposite of rabbits or deer who don't need to keep track of the distance of their food, because their food doesn't move.
Tigers have very sharp teeth. Their teeth are good for grabbing and ripping food. Tigers don't chew much, they tear off a bite of food, and then they swallow it. It takes the tiger three days to finish a large carcass. Then the tiger licks the bones with its tongue. Its tongue is rough and scratchy. This helps scrape the last bits of meat off the bones. Yum.