First of all you say what part of a tiger DO they use when they are eating. Second of all they use their mouth. The only excuse to talk like this is if you are 3 or mentally handicapped.
there paws
what are maya body part used
lion use it's fleshy mouth to eat it
Horses use their mouths to pull up plants for eating.
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for skin
nature and habits of tiger
the dog use teeth or tongue to get the dogs food.
what body part does a cricket use to chirp.
They use the guts in the insides
Of course, humans are the cause of the extinction of tigers. Humans hunt tigers for different reasons. Poaching is the main problem. Humans poach for the use of tiger fur and the parts of their body. They can sell the parts for money. In fact, Chinese people use their body parts for medicine. They believe that each different body part has its own use for the medicine and can cure different diseases. It is illegal to hunt animals now but some people out their still break the law.
By hunting down it's prey in the wilds. By the speed that a tiger can travel would require the animal to use many body muscles.