A blue slime
Official Terrarian
That's interesting,we have found some slime fossils around those areas,but we couldnt identify them.Men, I have found a new discovery! I have learned that there were slimes before blue and green which are the oldest living slime species. Apparently slimes have been around since the primordial soup! I hereby dub these Primordial slimes! I also found there were ocean slimes which I call Marine Slimes. They lived before plants first came to land.