I am not postiive, but this is my responce:
Cats used to be wild and when one died they knew "we can not sob, we must keep going on to survive:
Its instink
Well i pray for the person and assume they are in a good place. I might cry but i try to keep them in prayer
Mice, little birds and rats.
Yes, cats do know their siblings. Cats can tell by the scent of the sibling and the memory of the sibling.
Just let it go, what's done, is done...get a new cat!!!!!. ... Thats not working...Also i already have 2 other cats....
get another one That doesn't always help, just cry and wait a while and you'll know when you're over it then you can get another one.