Credits
Author: ©︎
Year Created: 2019

A recovered image of SCP-1577-JP
Item #: SCP-1577-JP
Object Class: Keter
Special Containment Procedures: SCP-1577-JP is contained in a standard biological containment unit at Site-8102. An automated system is set up to place 3kg of grass inside the containment unit every morning at 07:00; a minimum of 10kg of grass must be prepared inside the mechanism at all times. In order to prevent the occurrence of Event 1577-JP, it is prohibited to feed SCP-1577-JP any food other than grass.
In order to avoid the effects of Event 1577-JP, the assigned personnel are obliged to administer Class W mnestics. All assigned personnel must check the status of SCP-1577-JP daily. Any discrepancies identified between the assigned personnel and any other person regarding the concepts contained in the "grass-eating cow" must be reported to the Research Director.
Description: SCP-1577-JP is a Class IV Information Altering Entity in the form of a Holstein Friesian cow (Bos taurus) that does not sleep. SCP-1577-JP exchanges the names of two specific concepts in order to maintain its status as a "grass-eating cow" at any time (this exchange is designated as Event 1577-JP). Only the phrase "grass-eating cow" is unaffected by Event 1577-JP; the following is an example.
- SCP-1577-JP consumes a carrot.
- Event 1577-JP occurs as SCP-1577-JP consumed a carrot instead of grass. The name of concept ''Carrot'' changes to "Grass", and the name of concept ''Grass'' changes to "Carrot".
- Thereafter, carrots are treated as grass and grass as carrots until SCP-1577-JP consumes something other than carrots.
There is no location excluded from the influence of Event 1577-JP, and there are no confirmed cases of affected humans perceiving this change. It has been determined that there is approximately 1 hour between the point when SCP-1577-JP ceases to be a "grass-eating cow" and the occurrence of Event 1577-JP. The effects of Event 1577-JP can be removed by Class-A amnestics, and also can be prevented in advance by Class W mnestics.
Addendum 1: SCP-1577-JP was discovered on 2019/09/01, during a raid on an underground research facility operated by an organization (hereafter referred to as GoI-8101-16) affiliated with the Japan Organisms Improvement and Creation Laboratory. It is believed that SCP-1577-JP had been supervised by researchers belonging to GoI-8101-16, but was abandoned shortly before the raid. The following is an excerpt from a document recovered from the facility in question.
2018/08/28
We were unable to contact Mr. [DATA EXPUNGED], an anartist who had been in negotiations over the transfer of samples since a while ago, for two days. In response to this, a staff visited his residence, only to find that he had died of a stroke in the living room. The samples were recovered without problems, as they had already been promised to be transferred, and I was assigned to study one of them, a Holstein cow that does not stop lying down. Reportedly, there was a signboard attached to the barn next to the residence that reads "Grass Eating Cow". There was a decent amount of soil in the barn, but the Holstein is mildly malnourished. A small amount of grass was found in its mouth and stomach, but it is unclear why it had stopped lying down on the grass.
2018/08/29
The Holstein has refused to lie down. I placed some grass in its housing cell and even brought the grass close to Holstein's mouth, but it kept refusing. There was not much else I could do, so I gave it a carrot instead, and then the cow lay down on it without any problem. Was it a matter of preference?
2018/08/30
The true nature of that Holstein was discovered. That cow are honestly attempting to adhere to its own definition of a "grass-eating cow" that was on the signboard. Frighteningly, we were unaware of the conceptual swapping of carrots and grass; we were extremely fortunate that a trial of rice against memory modification happened to be underway. From now on, I would need to borrow a sample of rice from the research team to conduct my study. Will try to negotiate with them soon.
2018/08/31
One of my colleagues named that Holstein "Hanako". It was a very thoughtless action, but it turns out that naming it does not in itself trigger a conceptual alteration. Now I can safely give it an identification number.
2018/09/01
Ya-0443 (Holstein) collapsed. I was so afraid of what the fuck was going on, but it's a relief for now; after a while it started eating grass around its mouth. That said, why did it suddenly start eating grass that it had not been eating much before?
Addendum 2: Since 2018/09/02, the following phenomena have been observed worldwide.
- Malnutrition and food poisoning occurring in an unspecified number of humans regardless of age, ethnicity, gender, or other factors. Only oral nutrient intake is ineffective.
- Malnutrition occurring in grass-feeding livestock.
- Unexplained autonomous activities of bovine carcasses. There have been confirmed reports of these carcasses being returned to a living state when they were beaten or shot.
Event 1577-JP has been cited as a potential cause of these phenomena. Investigation is ongoing.