There should be no tiny brown bugs that appear in a cat's food. The reason for bugs in the food could be the food is old or contaminated. The food should be disposed of, and fresh food given to the cat.
probably ticks love:CP
It could be fleas or worms.
You find little white bugs in their fur
Those little black bugs are weevils.
They are little twerpy bugs.
I need you to be a little more specific.
You should take your cat to the veterinarian to get a proper diagnosis so it can be treated.
mites
Ticks
The most common black bugs in your hair are nits. However you will know wether its lice( a worse hair condition )if there are not little white eggs from nits.
A tuxedo cat
There is a French children's song called the little black cat. The translation in French is Le Chat Noir.
The bugs are fleas. Buy a flea powder and sprinkle the guinea pig according to the directions.
fleas