Do animals age in quarantine?

[QuirkyQuokka]

Hi I was wondering if animals age in quarantine? I tried to experiment with it but I couldn't tell.

 

[jcp011c]

I'm almost 100% certain they do.

Edit: not just guessing, I believe I read this or it was discussed somewhere, that this is the case.

 

[Firestar97]

I'm pretty sure they get older. I think their Welfare gets also lower if they are too long in Quarantine (at least Protesters can appear after some Time)