The serow is so sure-footed that it can leap from cliff to cliff. Hunters have compared its moves to a ninja's.

Mountains and Deserts · day 5 of 7
Its leaps from cliff to cliff reminded hunters of a ninja.
The serow doesn't fall, and falling also means failing an exam in Japanese.
It marks trees with sweet-and-sour-smelling scent from glands by its eyes.
It runs away with a whistling snort.
Japan returned the gift with two serows.
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