Not positive but I think it has something to do with the pheromones/scent of the blood.
I've never seen a female do it but my male licks and cleans the tomcats cuts and his jaws click like he's shivering and he drools.
He does the same thing when the female cats come in heat.
The shutter speed of the human eye is much faster than that of a camera. The eye can perceive and process images in a fraction of a second, while a camera's shutter speed is measured in milliseconds.
Sinning.
it means they love you!
A camera's shutter is similar to the human eyelid, so in a sense eyes do have 'shutters' Obviously :D
health
Dog mouth actually have some antibacterial-y things in their mouths so yupp they do ^_^ plus it feels awesome. i scratch my own scabs ! ..all this scratchin talk has got me itchy... HERE BOY
they both are used to take in, puncture, and chew up prey.
Carnassial teeth often cause puncture wounds when a cat bites a human.
That should be the shutter.
Nothing, they grow for free in peoples mouths.
Cats may lick their owners' mouths as a sign of affection or to show trust. It is a behavior that mimics how they groom each other in their social groups. This licking behavior can also be a way for cats to mark their territory and establish a bond with their human companions.
No, cancer is not transmissible across species.