Since The Late Show still doesn't have an Animal Expert, Will decided he'd fill the role.
Will only brought out rare, endangered species, including Mulan, a Short-spine Peruvian Mongoose*. According to Will, she is very, very aggressive.
Also with him was a Mongolian Bush Tiger* named Kayak, who's capable of taking out a full-grown moose. Will's seen it for himself.
The only Duck-Bodied Platypus* left in the world, Cilantro, made an appearance as well.
Followed by none other than Peyton Manning, a vicious Upper Nile Skull Badger*.
I think it's safe to say Will has secured his place as The Late Show's animal expert.