Here I've gathered some of Tess's hints:
:O oh my, maybe there are more than 3 outcomes for that grey pup...
------------------------------------------------------------------------------------------------------------------------------------------
yes, there are some rares this month some won't be evident until they hit adult stage though, so don't be tossing your duplicates just yet
------------------------------------------------------------------------------------------------------------------------------------------
for people wondering about halloween pets, there are some, but they haven't gone up yet.. I'll try and post some after I get through my bio exam
as for the rest, keep going guys, there are still some you're missing ;D
------------------------------------------------------------------------------------------------------------------------------------------
I decided to be nasty and include more rares than usual, just so that people will have something to scramble for in the trades section ;D
oh, im awful

but you can't shoot me, cause then there'd be no new adoptables
------------------------------------------------------------------------------------------------------------------------------------------
lol
umm
hint time
some of you already have slightly rarer pets it's just not that obvious to you when you adopt like 20 pets from the same newborn, cause it increases your chances of getting the rares xD but overall, there are 1000's less of those pets than there are of the more common ones, so you'll probably notice later when your pets are old and you want to trade them. People will be wanting to collect the ones they couldn't get ;D
and one of the rares won't show up until adult stage... so maybe don't ditch your duplicates just yet you might have 2 variations and not even know it