What feature is noted for measuring about one-third of the catamount's total body length and aiding balance?

Answer

The long, heavy tail

A cougar possesses a long, heavy tail, often measuring about one-third of its total body length, which aids significantly in balance during sharp turns while running or jumping.

What feature is noted for measuring about one-third of the catamount's total body length and aiding balance?
animalmammalfelidwildcatcatamount