There seems to be an issue where under the Explores details on a pet's profile, the sidebar shows the pet as having defeated more Temple Guardians than they actually had. This is most clearly seen on this dragon of mine: http://beastkeeper.com/pet/610934. Although it has explored only 35 times, the sidebar shows that it has visited 27 buildings and defeated 18 Temple Guardians, which is impossible. I know the issue is with the number of Temple Guardians rather than the number of buildings because when I beat my first Temple Guardian with this pet, the number was already at 3. 

Not a big problem, just a little odd. 

I agree, I've noticed that as well but forgot to post about it. My pet Gem has even more "efficient" exploring with 11 guardians out of 18 islands.

Thank you for reporting. We've found the typo that was causing this bug. It won't occur anymore. However, to restore the correct values, we'll need to parse all the explore logs since the beginning (it takes about one or two day for the script to do this). We'll fix it somewhere until the end of this month since at the moment we don't have exhibitions because of the event and it's not critical.