The two native inhabitants of SCP-XX have been remanded to SCP-XX-1 custody. A cover story regarding the incident has been disseminated, and witnesses have been identified and are currently being amnesticized.
Description: SCP-XX is a spacetime rift located in Yellowstone National Park, which, when traversed, provides access to a parallel reality. This world is largely similar to baseline except for some differences in the mammalian evolutionary history.
SCP-XX-1 is the Foundation-analogue organization within SCP-XX, which exhibits almost identical structure, ideology, and protocol. Currently the baseline Foundation has excellent relations with SCP-XX-1. See Document-F0899-5 for information on diplomatic and translation procedure.
Discovery: On 2023/08/11, reports were received of an ape attack in the park, where the entities in question exhibited unusual behavior. Details included them walking upright, attacking civilians with stolen ape spray, and hijacking an automobile.
MTF-Kappa-48 ("When Pigs Fly") was deployed, and, in coordination with park authorities, established roadblocks and began to surveil the area by helicopter. After three hours, the entities emerged at a southern road in the stolen vehicle. Rather than fight or overrun the barricade, they attempted to turn around after some confusion. During this pause, the containment team disabled their vehicle and successfully contained them.
A physical examination revealed no abnormalities, save their sapience. After questioning the entities (mediated via SCP-██ due to the language barrier), Foundation agents analyzed the area they were claimed to be camping at, and discovered SCP-XX. After crossing over, contact was made with SCP-XX-1 and a plan to return the two native inhabitants was arranged.
Addendum XX-1: Interview Log
After conducting their own debriefing of the returned inhabitants, SCP-XX-1 provided the following transcript, which has been attached below: