This is a partial extension to this question: What kind of natural armor would stop bullets?
I was wondering if a creature could grow armor in such a way which would allow for it to detach a portion of the armor, and use it as a shield. It does not need to develop naturally, we have bio engineering on our side for this question. A couple requirements:
- It needs to be somewhat easy to get off the body.
- It should be able to be "reattached" to the body, and it would be nice if the armor could continue growing after being "reattached".
- It should not be for the entire body, the detachable bit would be located on the back of the creature.
UDATE: The reason detachable armor is developed is for inter-species fighting, where in some scenarios its helpful to have more forward facing armor, kind of like how knights used shields, even though they had armor. It would also work as "deployable" cover in times with guns, so those with lighter armor could still be protected from hostile fire.
Not every creature gets the detachable armor, just like not every human in medieval times got a massive shield.