Four different creatures are highlighted in this installment, from the familiar clefthoof to the not so familiar saberon. Most interesting perhaps are the Pale, emaciated creatures that are encountered all over Draenor, but concentrated most heavily in Nagrand. Players will recognize the Pale on sight, as they are some of the first enemies encountered in both Frostfire Ridge and Shadowmoon Valley. I don't know what I was expecting in regards to their back story, but what's presented in the bestiary is a pretty creepy, interesting history with some pretty cool implications.
Check out Blizzard's official post for all the new creatures -- and while you're there, you might want to see if there are any earlier installments you may have missed along the way.