Tigers are carnivores , and feed on a wide variety of prey. They hunt between dusk and dawn. Some of their favorite foods are large mammals such as pigs, deer, antelope, buffalo, and gaur . Tigers rely on having a large natural habitat where they can hunt and roam freely. Unfortunately this natural habitat is shrinking as quickly as the tiger's overall population.
Human beings represent one of the main threats to tigers.
To better understand this I'll give you an example. And when we destroy this land we also wipe out the animals tigers rely on for food. So imagine how large a land mass full of animal prey just one tiger needs in order to survive. Another human threat to tigers is hunting. Many poachers hunt tigers for pure sport, keeping their hides as trophies and discarding the rest of the animal.