YES
A baying sound is a howl. Dogs and other creatures howl.
The sound dogs make while howling is know as a bay or baying. Such as the deep prolonged howl of a hound dog as it finds the scent of something it is tracking.
First of all, treeing is when the animal (bear, coon) runs up a tree after a long baying. I would suggest using a shock collar or smacking the dog of course. Don't worry, it's not mean. The dog is not respecting you.
baying your bills in time
Cataracts especially in older dogs and dogs with diabetes
Dogs are older than human because they leave longer than any other creatures
Baying at, spooning beneath the light of, shooting etc.
This is a form of greeting and respect for dogs. You shouldn't stop it. It is a natural and desirable behavior.
Yes, a young dog can learn from an older dog. the young dog does not have to be young. just younger than the older dog.
No.
yes
cats, sabertooth