Version 0.13.1135
OS: Windows
This bug happened after a game was saved. I had a dog of ours die from a random bear attack and we buried it. I had to stop playing because I was so sad. I came back the next day and my dog became a wild boar. The colonists still visit the grave as if the dog is in there but he is not. Maybe the dog was boar.d of being dead?
P.S.
This is my first play-through since about 3 updates and I gotta say Rimworld is becoming something incredible. I will not be on this forum for awhile, I just wanted to tell you about the bug.
My guess is that a colonist put the boar in when you didn't notice.
We'll watch for similar reports, but without a repeatable repro method I'm afraid I just have to close this.
Sorry the game made you sad and I'm glad you like it :)