It depends on the climate that the body is in and the conditions. 2 or 3 hours after a person dies the muscles begin to get stiff. Maximum stiffness occurs at around 12-24 hours. "Rigor Mortis"
Boner.
That is called "leather hard" clay
hola
They go into a thing called death,
Carcass stiffens because of rigor mortis. When the life ends, there is a chemical change to the muscle cells. It's one of the recognizable signs of death.
Reincarnation.
mummification
I/you/we/they stiffen. He/she/it stiffens.
They developed a process called embalming to protect the body.
Monotheism
rigor mortis
The study of death causes is called Pathology and the study of what happens to the dead body is usually called Anthropology.