A game of pairs / Memory - hint added + new Pic

i think you all remember this game from when you were kids so i´m not going to explain. What you have to do after you found the pairs is the puzzle part of it ^^

Please don´t post answers or tipps. If there are no or just a really small amount of entries i´ll post some tipps around sunday, then there´ll still be 3 days to try again for those who couldn´t find the GAs.

*edit: you have to be lvl 3 / 4 - sorry i forgot >.<

**edit: as promised here is some kind of hint. You can sort those animals in three groups.

View attached image.

View attached image.