Abovinable's try at SCP
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Item #: SCP-XXXX

Object Class: Euclid

Special Containment Procedures: SCP-XXXX-1 is to be contained in a standard aquarium of seawater, and it is to be fed daily at the perimeter of its containment with zooplankton, algae and marine invertebrates.

SCP-XXXX-2 is to be contained inside a controlled environment of atmosphere resembling the one present on SCP-XXXX-1. Researchers may adjust the environment for testing.

Both containment units must be hermetically sealed, as well as the clothing of personnel in contact with both anomalies. Additionally, personnel entering or exiting both units are to be sterilized to avoid microscopic competition in and out of containment.

Description: SCP-XXXX-1 is a female pacific green turtle with a carapace length of 43cm. Specimen weighs approximately 90kg and it is growing at the usual rate for its species, being now considered to be of juvenile age. SCP-XXXX-1's shell and body presents its own biomes for previously unknown microscopic unicellular and multicellular life that inhabit it. The atmosphere and morphology of such biomes appear to emanate from the most prominent organism on SCP-XXXX-1, a newly discovered lifeform that grows from the center of its shell. This organism visually resembles the common imagery of a leafless tree, save the physical composition consists of tissue unknown to any kingdom of current biology. Several other of the new species observed on SCP-XXXX-1 have been recorded developing commensalism with it. This appears to be the reason that SCP-XXXX-1 avoids submerging at the same rate as non-anomalous counterparts.

SCP-XXXX-2 is a sample of microscopic multicellular colony1. SCP-XXXX-2 appears to have a form of organization akin to culture and civilization, with detectable characteristics including, but not restricted to, use of tools, social learning, social organization, and domination over natural environments2.

SCP-XXXX-1's body presents a variety of self-sufficient ecosystems, particularly on top and under its shell. At irregular intervals SCP-XXXX-1 submerges within its containment, either partially or completely. When this happens, the ecosystems above it are intensely affected, resulting in climate and morphologic changes, as well as mass extinctions of life. Researchers have recorded three mass extinctions upon SCP-XXXX, two of them being considered equivalent to K-Class Scenarios (See Addedum A). SCP-XXXX-1 shelters a current estimate of 3 billion species.

Organisms above SCP-XXXX-1 seem to never be carbon, DNA or RNA-based, or water-dependant, but most present homeostasis, cellular organization, metabolism, growth, adaptation, response to stimuli and reproduction. Time passes normally on SCP-XXXX-1, though the lifespan of all of its organisms is minute.

After the event of ██-██-████, further testing with SCP-XXXX is put on a halt until new order from Chief Researcher Hudson.