SCP-1000

SCP-1000 is a Keter-classified SCP.

Description
SCP-1000 is an extremely dangerous and intelligent species of nocturnal ape that is known to the public as "Bigfoot". While this seems silly, the only reason the public views Bigfoot as a silly myth is because the Foundation set it up as such. In reality, Bigfoot was originally a race of ape of superior intelligence and technology to the humans, and the dominant race of Earth, treating humans like animals. The human race eventually rebelled and used the apes' unimaginably advanced technology to overthrow the Bigfoot race and make them almost completely extinct, before wiping their own memories and destroying any evidence of the fallen race.

However, 1-5% of the SCP-1000 population still remains, making a gateway to the many Bigfoot sightings that the Foundation try to cover up. A recent communication attempt by an SCP-1000 instance reads:

"we forgive you;  given choice for now, not forever;

let us back in"