I've noticed that the Gorillos I've tamed seem to take damage from nothing periodically.

For example on one save file I use them as guards for my base where the humans that tend to farms and industry are set with Medic as top job. I've noticed that they keep going by the Gorillo pen and healing them.

On another save I have 2 Gorillos who are left with some Bonedogs at safehouse in Flats Lagoon while my one guy runs around doing Ninja stuff. Checking in on their food supply I noticed both of them had suffer evenly distributed full body damage, as if they'd been tickled by a Venge lazer. The damage was too even to come from combat.

Has anyone else been having an issue like this with Gorillos or any other animal?