It might be because there are scent glands on a cats face, and cats sniff eachover to find out who they are, friend or foe. T he glands are used to spread the cats scent.
My cats have never done this, I have a few cats.
Well, cats are curious. They sniff new stuff.
It is only natural for other animals to sniff butts. There is no reason for a person to sniff a cat's butt because you cannot smell the pheromones that the other cats are sniffing for.
yes. that pootyhole nice
Yes, Cats eyes, are 'cats eyes' although their eyes aren't the same as maybe the marble 'cats eye', only in bright light- i suppose they are just eyes though
seeing in the dark, to help them find there way around
Around ten days.
how were cats eyes invented
Cats eyes was invented in 1933
Most Bengal cats have green eyes but Bengal cats without green eyes are rare. my Bengal cat has green eyes
They are getting used to each other or their mating!!
because tigers are really big cats and are related to cats