What characteristic led to the Père David's deer being called sì bù xiàng in China?

Answer

Its unique physical traits

The animal was known in China by the name *sì bù xiàng*, which translates to 'four dissimilarities,' referencing its unique physical combination of features.

What characteristic led to the Père David's deer being called sì bù xiàng in China?
extinctionmammalwildlifedeerChina