As many mods add these kind of creatures (Alex Mobs and Ecologics for example), for consistency's sake it would be neat if these mobs had a different name in tameable beasts. Example:

• Penguin --> Macaroni penguin
• Racoon --> Northern raccoon

Hiii, its a good idea for the Racoon, but the penguins is not a particular penguin species its a lot of em

The names I proposed were just suggestions, since the penguin mob represents more than one species maybe they could be labeled "Warrior Penguin" or "Penguin Fighter" since their unique trait differencing them from other modded penguins is mainly their ability to fight/get gear equipped.

Anyways, just suggestions :)