Free Online Virtual Breeding Games

Theres LOTS!

-Fishferous (online fish breeding game)
-Creature Breeder (breed adorable virtual pets)
-Foopets (adopt a realistic virtual pet, play with it, care for it and breed)
-Neopets (not exactly breeding, but adopt up to 4 adorable neopets)
-Facinity (online fish breeding game)
-Howrse (horse equestrian and breeding)
-Spore (can't be played directly from the IE or FF but best of these)

-Spotty