SCP-3199

Intro Special Containment Procedures: All live instances of SCP-3199 are to be contained on Site-114 within a modified Keter humanoid containment chamber (hereby referred to as primary containment), the walls of which should be coated in approximately two centimeters thick acid-resistant steel. CCTV equipment is installed in the north-eastern and south-western corners. Two meters of empty space are to be allocated between primary and secondary containment. A temporary recall procedure is detailed in Addendum 3199-03. Experiments involving the use of live SCP-3199 instances are strictly prohibited without approval from at least two personnel of Level-4 security clearance or above. This block is to be at a height of at least three meters. One armed security guard is to be stationed outside primary containment at all times. An eight-digit passcode can be obtained from the current Site-114 director in order to bypass primary containment. Secondary containment is to be regularly examined for damages. Movement and activity of any kind are to be noted, and the current Site-114 Director is to be informed at the earliest possible convenience. As of 2/18/2019, there are six live instances of SCP-3199 successfully contained. Description: SCP-3199 denotes a species of sapient Category-5 biological entities of currently indeterminable origin, though tissue samples indicate the presence of Silkie chicken1, chimpanzee2, stoat3, mussel4, adder5, and human DNA. They are typically hairless, stained with a thin layer of an albumen-like excretion, and stand at an average of 2.9 meters. Its weight averages 780 kg for a matured instance, and 360 kg for a hatchling. Autopsy has determined that the cervical vertebrae of a mature SCP-3199 instance are composed of cartilage, rather than bone. This enables the neck and throat to twist and dislocate to around 340° in either direction, aiding their unusual reproductive cycle.