I don't know if FFS will be releasing different breedable animals on a weekly or monthly basis or if this was just a one time thing, but a week ago they released a number of animals that had previously been unbreedable or only breedable during limited windows of availability. Even though most of these animals are listed as "not available through breeding," we have been able to breed some of these animals. Please use this thread to post which animals you have been able to breed and with which combos.
I just bred a Captain K9 using Emerald Dragon and Rock Rhino. I previously used this same combo to breed a Harvest Hedgehog.
I used basic Rock Rhino and Pandaffodil to breed a Werewolf.
Just got a Peppermint Platty with Pyro Pony and Dayglider.
I guess basically as long as you are using the required elements, you can get the animal you want, but I was hoping people would weigh in on things like the Tulip Tapir (what element is used for spring?) and so forth - the non-basic elements. It seems as though a lot of these animals can be obtained using Earth and Nature or Earth and Fire.