After what time does a cat become stiff? - briefly
A cat typically becomes stiff, a condition known as rigor mortis, within 3 to 4 hours after death and can last up to 72 hours.
After what time does a cat become stiff? - in detail
The process of a cat's body becoming stiff, known as rigor mortis, typically begins within 1 to 6 hours after death. This is a natural physiological response that occurs as the muscles in the body start to stiffen due to chemical changes at the cellular level. Initially, the muscles relax completely after death, but as adenosine triphosphate (ATP) production ceases, calcium ions accumulate in the muscle fibers, causing them to contract and lock into place. Rigor mortis usually becomes fully established within 6 to 12 hours post-death and can last for approximately 24 to 48 hours, depending on factors such as the ambient temperature, the cat's size, and its physical condition prior to death. In warmer environments, the onset of rigor mortis may occur more quickly, while cooler temperatures can delay the process. After this period, the stiffness gradually dissipates as the muscle tissues begin to break down, leading to the relaxation of the body. Understanding this process is essential for those studying animal biology or dealing with post-mortem care.