This little goat is in a pen. noun. The definition of a pen is a small yard or animal enclosure, or an tool used to draw or write with ink. An example of a pen is a petting zoo. An example of a pen is a ball point.
If you are referring to the internal temperature of the human body, studies show most bodies can only survive up to 108 degrees Fahrenheit, or 42 degrees Celcius, as the proteins inside the body begin to die at around 105F.
The core body temperature of a living human being is approximately 37oC, though as would be expected, after death the body will gradually lose heat until body temperature matches the environmental temperature (assuming the temperature of the environment is cooler than that of the body).