To those who are informed, I age my Original Characters that are Critters (even the OCs that walk on four legs, aka feral like their IRL Counterparts) the same age group as the Humans that care for them.

Also, for my Fanart and Fanfics of the Animals that are in Human Care, I may give them a personality, semi-syncopated to the Keepers that care for them and yes, I give the IRL Critters in Human Care a surname as a homage to where they currently live (and where they used to be at). That is my own signature to show my solidarity to the people that I dedicate my pics and stories to.

Hope that answers a few questions.

Thanks.