Item #: SCP-2809
Object Class: Euclid
Special Containment Procedures: SCP 2809 is currently contained within a population of cattle maintained on Foundation grounds and monitored by a combination of Foundation agents (Mobile Task Force Omega-V, the "Cowboys") and autonomous aerial drones to prevent escape. Should an instance of SCP 2809 be discovered by a non-Foundation individual, it is to be dismissed as a forgery or hoax. Use of Class A amnesiacs is only authorized if the instance become sufficiently common knowledge to the general public.
Description: SCP-2809 is a parasitic worm, superficially identical to the common blood fluke (genus Schistosoma). Unlike a blood fluke, SCP-2809 matures inside the gut region of predatory birds, such as hawks, eagles, falcons, and owls. Instances of SCP-2809 hatch from eggs that are passed out in the excrement of their hosts and land on vegetation.
The eggs of SCP-2809 hatch when they are consumed, along with the vegetation on which they lay, by a large herbivore. This host is hereafter designated SCP-2809-1. It is here that SCP-2809's anomalous properties manifest. Through an as yet not understood process, instances of SCP-2809-1 shrink over a period of eight to twelve hours to roughly 5 per cent of their natural dimensions. This size reduction seems to have no detrimental effect on SCP-2809-1's life, aside from making them more vulnerable to attack by predatory birds. When consumed by a predatory bird, SCP-2809 metamorphoses into its reproductive stage and lays eggs, which are once again passed out through the bird's excrement.
Instances of SCP-2809-1 do not experience a significantly decreased lifespan from their normal-sized counterparts, assuming they are not eaten by predators or otherwise killed. Their nutritional and metabolic needs are to scale with those of an organism of their original size, rather than those of species that are naturally small. It is unknown how long SCP-2809 can live inside of SCP-2809-1 before it needs to metamorphose, but the specimens at the Foundation have been observed to remain viable for years.
Known instances of SCP-2809-1 include the following:
Domestic cow (Bos primigenius taurus)
Domestic sheep (Ovis aries)
Domestic goat (Capra aegagrus hircus)
White-tailed deer (Odocoileus virginianus)
Moose (Alces alces)
Mule deer (Odocoileus hemionus)
Domestic pig (Sus scrofa)
Domestic horse (Equus ferus caballus)
Addendum 01: Notes from experimental trials regarding the biological properties of SCP-2809
Trial 1: One (1) adult cow implanted with SCP-2809. Over subsequent period of 10 hours, 46 minutes, subject (hereafter designated SCP-2809) decreased in linear dimensions and volume to approximately one one-hundredth of its former size. Subject terminated.
Trial 2: One (1) adult pig implanted with SCP-2809. Over subsequent period of 6 hours 21 minutes, subject decreased in linear and physical dimensions to one fiftieth of its former size. Subject terminated. Conclusion reached that the larger the host, the longer it takes SCP-2809 to shrink it to a suitable size.
Trial 3 One (1) dead pig. No shrinking observed. Subject fed to five (5) turkey vultures, a scavenging bird common throughout North and South America. Subsequent stool samples indicate that the SCP-2809 was ingested and reproduced inside the vultures' digestive tracts. This proves that SCP-2809 can be transmitted even after its host has died.
No full drafts in the forums, please. Make a sandbox page, put your draft there, and link it from the thread. ~Zyn