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GENERAL
Subspecies:
Siberian tiger
Bengal tiger
Sumatran tiger
Indochinese tiger
South China tiger
Caspian tiger
Javan tiger
Balinese tiger
Sabertooth tiger
hybrids:
Liger
Tigon
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The orbicular muscle
The orbicular muscle is a ring-shaped muscle that, when she stretches, closes to the middle and shut down the pipe after it.
The orbicular muscle can be found in the stomach and in the anus.