Cats are not pack animals like dogs, but they are very social animals.
They don’t distinguish between species, so they can be social stimulated by another cat or a human or a dog.
A lot of it also depends on what the cat is use to, if you leave a cat alone that is use to you being around all the time, it will get lonely. Cats feel loss if the cat / dog / human they live with dies, sometimes enough that they will stop eating and starve themself to death.
Cats are not pack animals like dogs, but they are very social animals. They don’t distinguish between species, so they can be social stimulated by another cat or a human or a dog. A lot of it also depends on what the cat is use to, if you leave a cat alone that is use to you being around all the time, it will get lonely. Cats feel loss if the cat / dog / human they live with dies, sometimes enough that they will stop eating and starve themself to death.