Well that's straightforward enough. BEAR, OCTOPUS, and DOG, right?
EDIT: For a little more reasoning after reading superdeath's spoiler, these three are what immediately stand out as Animal words. At least personally, BUCK and CHICK, while they can be descriptions of animals, are far less strong of an association than the common species names.
EDIT: For a little more reasoning after reading superdeath's spoiler, these three are what immediately stand out as Animal words. At least personally, BUCK and CHICK, while they can be descriptions of animals, are far less strong of an association than the common species names.

In this game that's going to help us because he's going to go to the negotiating table with twitchy eyes and slightly too wide a grin and terrify the neighbors into favorable border agreements, one-sided tech deals and staggered NAPs."