What animal starts with pi?

Partridge.

What animal starts with the letter R?

In addition to the list of animals that start with R are the roadrunner, roller, ringed parakeet, roseate flamingo, red sheep, roseate cockatoo, the red squirrel, red river hog, rainbow trout, ring-tailed lemur, redstart, rockfish, and the ringtail.

What are 20 types of mammals?

20 mammals by 2020