What is "pere david's deer"

Usage examples of "pere david's deer".

Noted for its attempts to preserve many of the planet's endangered species, it houses such diverse specimens as Pere David's deer and the European bison, not to mention a variety of rare rodents, snakes, and insects.

There weren't any of the feral cattle and Pere David's deer in sight that they'd noticed off and on the past few days, but something was cropping great stretches of the tall grass.