The strange case of Benjamin Bessie

[Gray]

So I was tending to my farm today when I hear:

MOOOOOOOOOOOOOOOOaAAAAAAAH!
(regular cow Moo)

When I come I see the previous 1 bull, 2 calfs and 3 female cows, BUT WHEN I TAKE A CLOSER LOOK theres a fourth female adult cow that was not previously there.
So im like, whoa the birth of a new calf and the growth of a previous one just took place at the same time.

Guess, what? I had the qualities written down along with names, so after 10 seconds of doing my checkings I actually realize it wasnt a coicidence of 2 events taking place BUT INSTEAD A COW WAS BORN ADULT.

Im serious about this. Is this a known bug? Is this cow gonna grow younger with each passing day?

[shotgunn902]

you sure you just don't coincidentally have 2 of the same quality or something along those lines? Not quite understanding what you mean to be quite honest. Cows ARE known to have twins if that helps.

[Sevenless]

I'd agree with the above. Twins were born + 1 calf growing up seems plausible here.

[Gray]

I forgot to mention it but the 2 calfs that were there, were only born yesterday.

[lcy03406]

Some villager tamed a new one yesterday?