Lime (quicklime) is made from limestone- but it is not the same thing. Agricultural lime is powdered limestone. Quicklime is limestone (calcium carbonate) that has been roasted and changed to Calcium Oxide. Slaked quicklime is quicklime that has had water added- Calcium hydroxide. Quicklime is used for odor control.
It can take anywhere from a few hours to a few days before you start to smell a dead animal, depending on various factors such as the size of the animal, the environmental conditions, and the presence of scavengers.
Fungi
YES.
there could be a dead animal in your vent
...Cycle of life
A gas smell has a rotten egg odor due to a chemical gas companies use to make gas leaks easily detectable. A dead animal smell is caused by bacteria and fungus as that form as the body decays.
Most likely they smelled like whatever they walked into.
decomposition
A dead animal smell coming from your furnace could be due to a small animal getting trapped or stuck in the ductwork or near the furnace. It is important to have a professional inspect and clean the furnace to remove any remains and eliminate the odor.
It depends on the type and size of the animal as well as temperature and humidity. Typically it takes 3 days before an odor is noticeable.
Limestone and sandstone. The rock needs to be one that's formed from sedimentation around the dead animal.
Its because od decomposition of the body ......