The ability is called regeneration.
lost your ability to hear sounds
No.
Yes, cats have a strong ability to remember their territory and can navigate their way back home if they get lost, relying on their keen sense of smell and mental map of their surroundings.
Depending if your dog has lost it's smell. If your dong has not then no.
To regrow body parts that are lost or damaged is called spicling.
Old men do not have a special ability to smell other people's farts. It is a natural bodily function and everyone has the ability to smell them, regardless of age.
They have lost their ability to control their growth rate.
The sense of smell is a very sensitive and complex ability called one of the five special senses. One of things most people are not aware of is that most so-called air fresheners are actually made from chemicals that get dispersed into the air and when they come into contact with your olfactory receptors in your nose, they plug them up so that you cannot smell as well, so they don't really clean the odors out of the air as much as they cut off your ability to smell.
The sense of smell is generally lost between ages 70-80. Also, it must be noted that it will be lost but not by some.
The importance smelling to the ability to taste is Your Mom.
Dragons are mythical. Their ability to smell or lack of it is dependant on the myth.