SCP 000-A: the nightreaper
Class: depends on mood but never reaches apocalyptic - the nightreaper (known as wolf) is contained in a football field sized area that is heavily forested and always stocked with prey. (and a few class D for "treats") there is another SCP, SCP 000-B named "rabbit"
The SCP is active day and night but is faster in the dark, there are red web hammocks that the two SCP's sleep in, there are climbing areas so the night reapers feel more safe. this is a surprize but they are capable of human communication and turning into a human.
this SCP is newly contained so expect it to be skittish or angry.