Description: SCP-1000 is a nocturnal, omnivorous ape, classified in the Hominini branch along with genera Pan and Homo. Adults range in size from 1.5 to 3 m (5 to 10 ft) in height, and weigh between 90 and 270 kg (200 - 600 lbs). They have grey, brown, black, red, and occasionally white fur. They possess large eyes with good vision, a pronounced brow ridge, and a sagittal crest on the forehead similar to that of the gorilla, but present in both sexes. Their intelligence is on par with that of Pan troglodytes (the common chimpanzee). SCP-1000 evolved alongside Homo sapiens, existing contemporaneously with proto-humans and humans in large numbers until 10,000-15,000 years ago, when an extinction event eliminated all but 1-5% of their population. This event was triggered by SCP-1000 contracting an anomalous "pseudo-disease" classified as SCP-1000-f1. This disease is passed on at the genetic level and affects every present-day instance of SCP-1000. The majority of SCP-1000 instances are born immune to the effect; those who are not born immune quickly die. The effect of SCP-1000-f1 is as follows: Any hominid (including humans, chimpanzees, bonobos, and non-immune instances of SCP-1000) that directly or indirectly observes any instance of SCP-1000 has a minimum 2% chance of being instantly killed through anomalous means via permanent cessation of brain function. This percentage is cumulative, and the longer a human views SCP-1000, the higher the chance of instantaneous death increases, at a rate of +1% chance per 20 minutes of viewing. This effect varies between individual members of SCP-1000's species, with some individuals carrying a 'death chance' of 90%. The effect is also produced by dead individuals, though small fur samples do not exhibit the effect. Known means of preventing this effect are small-scale only and include [REDACTED] (see attached documentation; Level 3 clearance required). Because of SCP-1000's close relation to humanity, it is considered likely that SCP-1000-f1 could eventually transfer to human carriers. Any instance of SCP-1000 finding its way to a major population center could constitute an ██-class end of the world scenario with a minimum death toll of [REDACTED] and possible extinction of humanity. Fortunately, SCP-1000 appears to instinctively avoid human contact. It is not currently feasible to exterminate SCP-1000 entirely. The highest known population concentrations of SCP-1000 are at present located in the Pacific Northwest region of North America and the Himalayan Mountain range in Asia. As of ██/██/████, these populations remain extant. SCP-1000's presence and [DATA EXPUNGED] have also been documented within the past 5 years on every continent. All known significant populations of SCP-1000 located near human population centers have been eliminated. SCP-1000 came to the attention of the Foundation via contact by Doctor Franz M███████ in 14██ with the Children of the Sun, who identified themselves as outcast members of the Serpent's Hand. This group has since been completely destroyed by the Foundation, due to their reluctance to surrender information about SCP-1000, SCP-███, and SCP-███ (since reclassified as SCP-1000-███ and SCP-1000-███). Remaining members have either joined the Foundation, or have gone into hiding, presumably as members of the Serpent's Hand. Weapons, tools, and other unique pseudo-technological resources in possession of the organization have been classified as SCP-1000-001 through SCP-1000-████. These resources have been made use of by the Foundation in multiple instances; for a full list, see Document 1000-3534-Y (Level 3 clearance required). Access to surviving ex-members of the Children of the Sun is restricted to personnel with clearance level 4/1000 unless given direct authorization for contact by Director Jones. Further information is available to personnel with clearance level 3/1000 or above. Personnel with clearance level 3/1000 or above are required to read Document Alpha-1596-1000.