When I once got my first dilo it was killed immediately. I mean at least I got a reward for the tame but curse these troodons! I was whistling and whistling and whistling for my dear Dorothy to come back. But she never came. Next I got my revenge on the troodon (whew that was hard) and killed it, bringing back the guts of Dorothy as well harvested dilo meat. But as sad as my ark guy was that Dorothy died at least my guy was happy that he got food. Lesson here: Never tame dinos near troodons. One press of the up symbol is one prayer for Dorothy. That was an FYI. Take my word.