horse
A "musty" smell would describe a damp animal
Most animal have their own distinct smell.
yes somethings are there that animals can smell and we cannot smell
Sharks
A Snail
An animal make have gotten trapped in a wall if the wall smell like one. Another reason for the smell is mold which occurs when there is water damage.
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.
You also need to know how often the loss of sense of smell does not precede them.
skunk
A skunk!
No it doesn't if you clean it!
none of them