What color/type attacks do the animals use?

[Necroliter]

Indeed, auroch have pure green attack (that bypass blue def). But have combined attack as well.

[Hardsun]

I have not seen any significant difference for any animal. They all seem to have blue/green combined basic attacks and can use yellow attacks when they get IP.
Not sure about bears.

You can observe the variation when you're fighting mouflon and aurochsen. They can choose to hit blue only and bypass green defenses.

There are no way to see opponent attacks used ... right ?
ps: would be nice to have some kind of ingame *Hearthpedia* with bestiary section and characters being able to fill it up while fighting animals - so in a time you will start to see prepared attacks and can read bestiary for details. Would still keep new foes being difficult. I dont know if such things are supposed to be in a game that tells nothing to players ehh...

[TeckXKnight]

You can't see it, no, but you can see that you've taken damage. If you're wearing armor you can hear their attack hit your deflection. If you have defenses still up, that means those attacks ignored those colors. Different animals do appear to have different attacks even if the variable is mild for the time being.

[T4m4m0]

DO NOT chop through boar's tusk romp, even if it flees already. This thing OHKOd me for 150 hp + 20/20 armor, eating a large chunk of hhp, destroying my boots and helm. Looked like some kind of explosion.
It either reflects damage or does 200-ish dmg.