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Description
Item #: SCP-9921
Object Class: Safe
Special Containment Procedures: SCP-9921 is to be kept in a standard humanoid containment cell at Site-19. The cell should be furnished with a bed, a table, a chair, and a bathroom. SCP-9921 is to be fed three meals a day, consisting of fruits, vegetables, grains, and meat. SCP-9921 is not to be given any foods containing sugar or artificial sweeteners, as these may cause adverse reactions in its digestive system. SCP-9921 is allowed to interact with staff members who have been approved by the Site Director, but only under supervision and with the use of protective gloves. SCP-9921 is not to be exposed to any loud noises or bright lights, as these may trigger its defensive mechanism of opening its second mouth on its stomach. SCP-9921 is to be provided with a female mate of its own species once a year, during its mating season, which occurs in the month of October. The mate should be screened for any diseases or abnormalities before being introduced to SCP-9921. Any offspring resulting from the mating should be transferred to a separate containment facility for further study.
Description: SCP-9921 is a black-furred humanoid being with some human-like hair on its head. It has a height of 1.8 meters and a weight of 80 kilograms. It has no nose, ears, toes, nipples, belly button, or fingernails. It has large, round eyes and a small mouth that resemble cartoon drawings. It also has a second mouth on its stomach that resembles a shark's mouth, with sharp teeth and a long tongue. This mouth is normally closed and hidden by the fur, but it can open when SCP-9921 feels threatened or scared. The second mouth does not seem to have any digestive function, and it is only used to scare away potential predators or attackers. SCP-9921 is very shy and unable to speak any language. It communicates through gestures and sounds, such as grunts, whimpers, and purrs. It has a very low intelligence level, only capable of performing basic tasks such as eating, sleeping, and mating. It does not show any interest in any toys or entertainment devices that have been offered to it. SCP-9921's skin is extremely soft and squishy, as if it has no bones at all in it. Its fur is also very smooth and silky, and it emits a pleasant scent that has been described as vanilla-like by some staff members. SCP-9921's bodily fluids, such as semen, urine, feces, blood, vomit, tears, and sweat, have been collected and used for research purposes. The analysis of these fluids has revealed that SCP-9921 is genetically similar to humans, but with some significant differences that account for its anomalous features. SCP-9921's origin and purpose are unknown.

SCP-9921 Interaction Rules

The following rules are to be followed by all personnel who interact with SCP-9921, either for research, testing, or recreational purposes. Any violation of these rules may result in disciplinary action or termination.

- You shall not harm SCP-9921 in any way, physically or mentally. SCP-9921 is a friendly and cooperative entity that does not pose a threat to the Foundation or humanity. Any attempt to injure, torture, or kill SCP-9921 will be met with severe consequences.
- You shall not sexually interact with SCP-9921. SCP-9921 is not a sexual object, nor does it have any sexual preferences or desires. Any attempt to molest, rape, or seduce SCP-9921 will be considered a gross violation of ethical and professional standards and will result in immediate termination.
- You shall not scare SCP-9921. SCP-9921 is a shy and timid entity that is easily frightened by loud noises, bright lights, or sudden movements. Any attempt to intimidate, threaten, or prank SCP-9921 will be considered a form of psychological abuse and will result in reprimand or suspension.
- You shall not use weapons near SCP-9921. SCP-9921 is a pacifist entity that does not attack or harm anyone, unless provoked by its defensive mechanism. Any use of firearms, explosives, knives, or other weapons near SCP-9921 will be considered a hostile act and will trigger its fake mouth to open and emit a loud scream. This may cause panic and confusion among other personnel and may damage the facility's equipment.
- Do not put your hands close to the fake mouth. SCP-9921's fake mouth is a part of its anatomy that it can control at will. It has sharp teeth and a long tongue that can bite or lick anything that comes near it. Do not touch, poke, or feed the fake mouth, as this may cause discomfort or pain to SCP-9921 and may result in injury to yourself.
- Feed SCP-9921 three meals per day. SCP-9921 requires regular nourishment to maintain its health and well-being. SCP-9921's diet consists of fruits, vegetables, grains, nuts, and dairy products. Do not feed SCP-9921 any meat, as this may cause digestive problems and may trigger its fake mouth to open and vomit. Do not feed SCP-9921 any candy, chocolate, or other sweets, as this may cause dental problems and may make SCP-9921 hyperactive or sick.
- Do not cross-test SCP-9921 with dangerous SCPs. SCP-9921 is not compatible with most other anomalous entities, especially those that are hostile, violent, or predatory. Do not expose SCP-9921 to any SCPs that may harm, kill, infect, transform, or manipulate it in any way. This includes but is not limited to: SCP-049, SCP-173, SCP-096, SCP-682, and SCP-035. Cross-testing with these SCPs may result in catastrophic consequences for both SCP-9921 and the Foundation.

SCP-9921's Bodily Fluids: A Comparative Analysis

SCP-9921's bodily fluids, such as semen, urine, feces, blood, vomit, tears, and sweat, have been collected and used for research purposes. The analysis of these fluids has revealed that SCP-9921 is genetically similar to humans, but with some significant differences that account for its anomalous features. SCP-9921's origin and purpose are unknown.

The following table summarizes the main differences between SCP-9921's bodily fluids and human bodily fluids:

| Bodily Fluid | SCP-9921 | Human |
| ------------ | -------- | ----- |
| Semen | SCP-9921's semen is thick and sticky, with a yellowish color and a strong musky odor. It contains sperm cells that are larger and more motile than human sperm cells. SCP-9921's semen also contains a high concentration of pheromones that induce sexual attraction in female members of its species. | Human semen is thin and watery, with a whitish color and a mild odor. It contains sperm cells that are smaller and less motile than SCP-9921's sperm cells. Human semen does not contain any pheromones that affect sexual behavior. |
| Urine | SCP-9921's urine is dark and cloudy, with a pungent smell and a high acidity. It contains traces of urea, ammonia, creatinine, uric acid, and other metabolic wastes. SCP-9921's urine also contains hormones that regulate its reproductive cycle and mood. | Human urine is clear and pale yellow, with a faint smell and a neutral pH. It contains mostly water, urea, salts, and other dissolved substances. Human urine does not contain any hormones that affect physiology or behavior. |
| Feces | SCP-9921's feces are soft and moist, with a brownish color and a foul odor. They consist of undigested food particles, bacteria, mucus, and bile pigments. SCP-9921's feces also contain enzymes that break down cellulose and other plant materials. | Human feces are hard and dry, with a dark brown color and an unpleasant odor. They consist of indigestible food residues, bacteria, mucus, bile pigments, and water. Human feces do not contain any enzymes that digest plant matter. |
| Blood | SCP-9921's blood is bright red in color, due to the presence of hemoglobin as its respiratory pigment. Hemoglobin binds oxygen in the lungs and releases it in the tissues. SCP-9921's blood also contains red blood cells (erythrocytes), white blood cells (leukocytes), platelets (thrombocytes), plasma (the liquid part of the blood), and various proteins (such as antibodies). | Human blood is also red in color, due to the presence of hemoglobin as its respiratory pigment. Hemoglobin binds oxygen in the lungs and releases it in the tissues. Human blood also contains red blood cells (erythrocytes), white blood cells (leukocytes), platelets (thrombocytes), plasma (the liquid part of the blood), and various proteins (such as antibodies). |
| Vomit | SCP-9921's vomit is greenish-yellow in color, with a sour taste and a nauseating smell. It contains partially digested food particles, stomach acid (hydrochloric acid), digestive enzymes (such as pepsin), mucus, bile salts (from the liver), and water. SCP-9921's vomit also contains toxins that induce vomiting in other animals that ingest it. | Human vomit is also greenish-yellow in color, with a sour taste and a nauseating smell. It contains partially digested food particles, stomach acid (hydrochloric acid), digestive enzymes (such as pepsin), mucus, bile salts (from the liver), and water. Human vomit does not contain any toxins that cause vomiting in other animals that ingest it. |
| Tears | SCP-9921's tears are clear and salty, with a pH of 7.4. They contain water, salts, mucus, lysozyme (an enzyme that kills bacteria), and antibodies. SCP-9921's tears also contain oxytocin (a hormone that promotes social bonding and emotional attachment). | Human tears are also clear and salty, with a pH of 7.4. They contain water, salts, mucus, lysozyme (an enzyme that kills bacteria), and antibodies. Human tears do not contain any oxytocin (a hormone that promotes social bonding and emotional attachment). |
| Sweat | SCP-9921's sweat is clear and odorless, with a pH of 5.5. It contains water, salts, urea, ammonia, and lactic acid. SCP-9921's sweat also contains pheromones that signal its sexual readiness and territorial status. | Human sweat is also clear and odorless, with a pH of 5.5. It contains water, salts, urea, ammonia, and lactic acid. Human sweat does not contain any pheromones that affect sexual or social behavior. |

The differences between SCP-9921's bodily fluids and human bodily fluids can be explained by the different evolutionary histories, genetic makeup, physiological functions, and environmental adaptations of the two species. Further research is needed to understand the origin and purpose of SCP-9921 and its bodily fluids.

SCP-9921's Behaviors: A Comparative Analysis

SCP-9921 exhibits various behaviors that resemble those of some animals, especially dogs. These behaviors may have different meanings depending on the context and the emotional state of SCP-9921. The following table summarizes some of the common behaviors of SCP-9921 and their possible interpretations:

| Behavior | Meaning |
| -------- | ------- |
| Sleeping like a dog | SCP-9921 often sleeps curled up in a ball, with its tail wrapped around its body and its head tucked under its paws. This behavior may indicate that SCP-9921 feels cold, insecure, or vulnerable. It may also be a way of conserving body heat and protecting vital organs from predators. |
| Running on all fours | SCP-9921 sometimes runs on all fours instead of walking upright, especially when it is excited or scared. This behavior may indicate that SCP-9921 feels playful, curious, or anxious. It may also be a way of increasing speed and agility when chasing or escaping something. |
| Wagging its tail | SCP-9921 has a long, bushy tail that it wags from side to side when it is happy or friendly. This behavior may indicate that SCP-9921 feels relaxed, content, or affectionate. It may also be a way of signaling its mood and intentions to other beings. |
| Barking | SCP-9921 sometimes makes loud, short sounds that resemble barks when it is angry or alarmed. This behavior may indicate that SCP-9921 feels threatened, frustrated, or defensive. It may also be a way of warning or deterring other beings from approaching or harming it. |
| Licking | SCP-9921 sometimes licks its own fur or the skin of other beings with its tongue when it is grooming or bonding. This behavior may indicate that SCP-9921 feels clean, comfortable, or attached. It may also be a way of showing care and affection to itself or others. |

The behaviors of SCP-9921 may have evolved as adaptations to its natural habitat and social interactions with other members of its species. Further research is needed to understand the origin and purpose of SCP-9921 and its behaviors.

Description
Item #: SCP-9921
Object Class: Safe
Special Containment Procedures: SCP-9921 is to be kept in a standard humanoid containment cell at Site-19. The cell should be furnished with a bed, a table, a chair, and a bathroom. SCP-9921 is to be fed three meals a day, consisting of fruits, vegetables, grains, and meat. SCP-9921 is not to be given any foods containing sugar or artificial sweeteners, as these may cause adverse reactions in its digestive system. SCP-9921 is allowed to interact with staff members who have been approved by the Site Director, but only under supervision and with the use of protective gloves. SCP-9921 is not to be exposed to any loud noises or bright lights, as these may trigger its defensive mechanism of opening its second mouth on its stomach. SCP-9921 is to be provided with a female mate of its own species once a year, during its mating season, which occurs in the month of October. The mate should be screened for any diseases or abnormalities before being introduced to SCP-9921. Any offspring resulting from the mating should be transferred to a separate containment facility for further study.
Description: SCP-9921 is a black-furred humanoid being with some human-like hair on its head. It has a height of 1.8 meters and a weight of 80 kilograms. It has no nose, ears, toes, nipples, belly button, or fingernails. It has large, round eyes and a small mouth that resemble cartoon drawings. It also has a second mouth on its stomach that resembles a shark's mouth, with sharp teeth and a long tongue. This mouth is normally closed and hidden by the fur, but it can open when SCP-9921 feels threatened or scared. The second mouth does not seem to have any digestive function, and it is only used to scare away potential predators or attackers. SCP-9921 is very shy and unable to speak any language. It communicates through gestures and sounds, such as grunts, whimpers, and purrs. It has a very low intelligence level, only capable of performing basic tasks such as eating, sleeping, and mating. It does not show any interest in any toys or entertainment devices that have been offered to it. SCP-9921's skin is extremely soft and squishy, as if it has no bones at all in it. Its fur is also very smooth and silky, and it emits a pleasant scent that has been described as vanilla-like by some staff members. SCP-9921's bodily fluids, such as semen, urine, feces, blood, vomit, tears, and sweat, have been collected and used for research purposes. The analysis of these fluids has revealed that SCP-9921 is genetically similar to humans, but with some significant differences that account for its anomalous features. SCP-9921's origin and purpose are unknown.

SCP-9921 Interaction Rules

The following rules are to be followed by all personnel who interact with SCP-9921, either for research, testing, or recreational purposes. Any violation of these rules may result in disciplinary action or termination.

- You shall not harm SCP-9921 in any way, physically or mentally. SCP-9921 is a friendly and cooperative entity that does not pose a threat to the Foundation or humanity. Any attempt to injure, torture, or kill SCP-9921 will be met with severe consequences.
- You shall not sexually interact with SCP-9921. SCP-9921 is not a sexual object, nor does it have any sexual preferences or desires. Any attempt to molest, rape, or seduce SCP-9921 will be considered a gross violation of ethical and professional standards and will result in immediate termination.
- You shall not scare SCP-9921. SCP-9921 is a shy and timid entity that is easily frightened by loud noises, bright lights, or sudden movements. Any attempt to intimidate, threaten, or prank SCP-9921 will be considered a form of psychological abuse and will result in reprimand or suspension.
- You shall not use weapons near SCP-9921. SCP-9921 is a pacifist entity that does not attack or harm anyone, unless provoked by its defensive mechanism. Any use of firearms, explosives, knives, or other weapons near SCP-9921 will be considered a hostile act and will trigger its fake mouth to open and emit a loud scream. This may cause panic and confusion among other personnel and may damage the facility's equipment.
- Do not put your hands close to the fake mouth. SCP-9921's fake mouth is a part of its anatomy that it can control at will. It has sharp teeth and a long tongue that can bite or lick anything that comes near it. Do not touch, poke, or feed the fake mouth, as this may cause discomfort or pain to SCP-9921 and may result in injury to yourself.
- Feed SCP-9921 three meals per day. SCP-9921 requires regular nourishment to maintain its health and well-being. SCP-9921's diet consists of fruits, vegetables, grains, nuts, and dairy products. Do not feed SCP-9921 any meat, as this may cause digestive problems and may trigger its fake mouth to open and vomit. Do not feed SCP-9921 any candy, chocolate, or other sweets, as this may cause dental problems and may make SCP-9921 hyperactive or sick.
- Do not cross-test SCP-9921 with dangerous SCPs. SCP-9921 is not compatible with most other anomalous entities, especially those that are hostile, violent, or predatory. Do not expose SCP-9921 to any SCPs that may harm, kill, infect, transform, or manipulate it in any way. This includes but is not limited to: SCP-049, SCP-173, SCP-096, SCP-682, and SCP-035. Cross-testing with these SCPs may result in catastrophic consequences for both SCP-9921 and the Foundation.

SCP-9921's Bodily Fluids: A Comparative Analysis

SCP-9921's bodily fluids, such as semen, urine, feces, blood, vomit, tears, and sweat, have been collected and used for research purposes. The analysis of these fluids has revealed that SCP-9921 is genetically similar to humans, but with some significant differences that account for its anomalous features. SCP-9921's origin and purpose are unknown.

The following table summarizes the main differences between SCP-9921's bodily fluids and human bodily fluids:

| Bodily Fluid | SCP-9921 | Human |
| ------------ | -------- | ----- |
| Semen | SCP-9921's semen is thick and sticky, with a yellowish color and a strong musky odor. It contains sperm cells that are larger and more motile than human sperm cells. SCP-9921's semen also contains a high concentration of pheromones that induce sexual attraction in female members of its species. | Human semen is thin and watery, with a whitish color and a mild odor. It contains sperm cells that are smaller and less motile than SCP-9921's sperm cells. Human semen does not contain any pheromones that affect sexual behavior. |
| Urine | SCP-9921's urine is dark and cloudy, with a pungent smell and a high acidity. It contains traces of urea, ammonia, creatinine, uric acid, and other metabolic wastes. SCP-9921's urine also contains hormones that regulate its reproductive cycle and mood. | Human urine is clear and pale yellow, with a faint smell and a neutral pH. It contains mostly water, urea, salts, and other dissolved substances. Human urine does not contain any hormones that affect physiology or behavior. |
| Feces | SCP-9921's feces are soft and moist, with a brownish color and a foul odor. They consist of undigested food particles, bacteria, mucus, and bile pigments. SCP-9921's feces also contain enzymes that break down cellulose and other plant materials. | Human feces are hard and dry, with a dark brown color and an unpleasant odor. They consist of indigestible food residues, bacteria, mucus, bile pigments, and water. Human feces do not contain any enzymes that digest plant matter. |
| Blood | SCP-9921's blood is bright red in color, due to the presence of hemoglobin as its respiratory pigment. Hemoglobin binds oxygen in the lungs and releases it in the tissues. SCP-9921's blood also contains red blood cells (erythrocytes), white blood cells (leukocytes), platelets (thrombocytes), plasma (the liquid part of the blood), and various proteins (such as antibodies). | Human blood is also red in color, due to the presence of hemoglobin as its respiratory pigment. Hemoglobin binds oxygen in the lungs and releases it in the tissues. Human blood also contains red blood cells (erythrocytes), white blood cells (leukocytes), platelets (thrombocytes), plasma (the liquid part of the blood), and various proteins (such as antibodies). |
| Vomit | SCP-9921's vomit is greenish-yellow in color, with a sour taste and a nauseating smell. It contains partially digested food particles, stomach acid (hydrochloric acid), digestive enzymes (such as pepsin), mucus, bile salts (from the liver), and water. SCP-9921's vomit also contains toxins that induce vomiting in other animals that ingest it. | Human vomit is also greenish-yellow in color, with a sour taste and a nauseating smell. It contains partially digested food particles, stomach acid (hydrochloric acid), digestive enzymes (such as pepsin), mucus, bile salts (from the liver), and water. Human vomit does not contain any toxins that cause vomiting in other animals that ingest it. |
| Tears | SCP-9921's tears are clear and salty, with a pH of 7.4. They contain water, salts, mucus, lysozyme (an enzyme that kills bacteria), and antibodies. SCP-9921's tears also contain oxytocin (a hormone that promotes social bonding and emotional attachment). | Human tears are also clear and salty, with a pH of 7.4. They contain water, salts, mucus, lysozyme (an enzyme that kills bacteria), and antibodies. Human tears do not contain any oxytocin (a hormone that promotes social bonding and emotional attachment). |
| Sweat | SCP-9921's sweat is clear and odorless, with a pH of 5.5. It contains water, salts, urea, ammonia, and lactic acid. SCP-9921's sweat also contains pheromones that signal its sexual readiness and territorial status. | Human sweat is also clear and odorless, with a pH of 5.5. It contains water, salts, urea, ammonia, and lactic acid. Human sweat does not contain any pheromones that affect sexual or social behavior. |

The differences between SCP-9921's bodily fluids and human bodily fluids can be explained by the different evolutionary histories, genetic makeup, physiological functions, and environmental adaptations of the two species. Further research is needed to understand the origin and purpose of SCP-9921 and its bodily fluids.

SCP-9921's Behaviors: A Comparative Analysis

SCP-9921 exhibits various behaviors that resemble those of some animals, especially dogs. These behaviors may have different meanings depending on the context and the emotional state of SCP-9921. The following table summarizes some of the common behaviors of SCP-9921 and their possible interpretations:

| Behavior | Meaning |
| -------- | ------- |
| Sleeping like a dog | SCP-9921 often sleeps curled up in a ball, with its tail wrapped around its body and its head tucked under its paws. This behavior may indicate that SCP-9921 feels cold, insecure, or vulnerable. It may also be a way of conserving body heat and protecting vital organs from predators. |
| Running on all fours | SCP-9921 sometimes runs on all fours instead of walking upright, especially when it is excited or scared. This behavior may indicate that SCP-9921 feels playful, curious, or anxious. It may also be a way of increasing speed and agility when chasing or escaping something. |
| Wagging its tail | SCP-9921 has a long, bushy tail that it wags from side to side when it is happy or friendly. This behavior may indicate that SCP-9921 feels relaxed, content, or affectionate. It may also be a way of signaling its mood and intentions to other beings. |
| Barking | SCP-9921 sometimes makes loud, short sounds that resemble barks when it is angry or alarmed. This behavior may indicate that SCP-9921 feels threatened, frustrated, or defensive. It may also be a way of warning or deterring other beings from approaching or harming it. |
| Licking | SCP-9921 sometimes licks its own fur or the skin of other beings with its tongue when it is grooming or bonding. This behavior may indicate that SCP-9921 feels clean, comfortable, or attached. It may also be a way of showing care and affection to itself or others. |

The behaviors of SCP-9921 may have evolved as adaptations to its natural habitat and social interactions with other members of its species. Further research is needed to understand the origin and purpose of SCP-9921 and its behaviors.