No. Any aggresive species become docile in alien containment.

But when you let them out....

I don’t think so, It’s be cool if they were tho

No, but imagine if you had Crabsquids, Crabsnakes, glowing mushrooms. All in the same containment. The Crab Fam!

I had a crabsquid in my alien containment. When I released him he started EMPing my base so I drove him off with my knife and stasis rifle.