Per 
Item #: SCP-5138
Object Class: Euclid
Special Containment Procedures: SCP-5138 is to be kept in a 40 m x 40 m x 40 m chamber with polycarbonate lined on all surfaces. SCP-5138 is to be given 16 kilograms of food and 35 gallons of water daily, and also have a box 9 m x 9 m x 1 m flush with the floor and filled with cat litter that needs to be changed twice a day. SCP-5138 to be communicated to with caution and respect, for SCP-5138 perceives even the slightest aggression as a challenge or a threat.
Description: SCP-5138 is a species of jaguar 6 m in length, and weighing roughly 650 kilograms. They are an intelligent and strategic race, capable of speaking multiple languages as well as a language that is yet to be understood by foundation staff. SCP-5138 only attacks if provoked, agitated or hungry, And is otherwise passive toward all life (See Addendum 5138-B).
SCP-5138 has more developed senses than the average jaguar, which has been proven by their repeated statements that they know we were observing them and could "Hear our hearts beating". Their strength and speed are highly developed as well, as their claws are able to tear through any metal or stone. They are able to manipulate the stones into a variety of weapons and armor. Some of which include:
- Serrated Helmet
- Armored Claws
- Body Armor
- Serrated Tail
SCP-5138 are surprisingly compliant when treated with respect. They continually request to observe Foundation weapons and tools They acknowledge that the Foundation intends to contain them indefinitely, however attempts to breach containment have begun to increase steadily with no sign of stopping. SCP-5138 is to be kept in Site-[REDACTED]
Addendum 5138-B: Portion of recorded transcript [NOT YET PROCESSED]
Foreword: SCP-5138 has not responded to any Foundation Personnel throughout the 3 weeks in containment, Although tests have shown high brain activity. Guest Researcher Williams has studied Felinology for 4 years and was requested to explain their abnormal behavior.
<Begin Log>
Guest Researcher Williams: This is what you wanted to show me?
Dr Fox: That's right. It's been docile for 3 weeks, It's just been doing things a regular cat would.
Guest Researcher Williams: It's waiting for something to enter so it can kill. It's trying to confuse you all. This thing wants to hunt or fight something.
Dr Fox: Let's get a D-Class in there.
<skip to 00h-03m-26s>
Personnel D-721 (Turns to face the cameras) You expect me to walk up to this thing?
Dr Fox: It has been perfectly fine with people, you're no different.
SCP-5138:(Stands up, and walks toward D-721)
Dr Fox: Just don't spook it, and you'll be fine.
SCP-5138: I'm not the one who should be afraid…
Personnel D-721 (Screams and begins to run)
SCP-5138(Bites D-721's body in half)…He was far too weak… (consumes D-721's body)… but tender and juicy…
<End Log>
Closing Statement: SCP-5138 did not attack any other Personnel entering the room for the removal of D-721's remains, which mainly consisted of the bones and flesh SCP-5138 did not gnaw on
