It is unknown when or how the Foundation acquired SCP-682 but presumably it happened shortly after the creature attacked a farm and slaughtered everything on it. It bore a particular hatred for the humans of the farm and when questioned about its motives, it simply says "They were...disgusting...". SCP-682 is marked for destruction, however cannot be destroyed by conventional means as it is terrifyingly resilient and any damage done can be quickly regenerated. This makes it necessary to keep the creature submerged inchydrochloric acid, which eats away at it as fast as it regenerates itself.
SCP-682 has escaped containment six times and even the definitely fatal effects of other SCPs simply incapacitate it at best.
SCP-682 is described as vaguely repitilian and has only one official photo to date, showing its head after being immersed in acid. However, in the SCP game Hard to Destroy Reptile in which a player or several players must re-contain the escaped beast, it appears as a vaguely crocodilian-esque creature with bones exposed in multiple places on its body. Its jaws are lined with razor sharp teeth and it has a second mouth on its stomach. Two human arms, likely consumed, juts out of its body and it moves quadrupedally.
SCP-682 is an undisputed monster; simply talking to it is enough to drive it in a murderous rage. Despite being so violent, it isn't unintelligent and is rather sophisticated right alongside it's vulgarness, referring to SCP-999 as a 'feculent little snot wad'. Despite its malevolence, he has seemingly developed a healthy friendship with the little girl known as SCP-053 who is also contained by the fundation.