Just to problems off the top of my head; In order to understand "I" you have to be able to understand there's an "other". Do lions understand others are also f

Just to problems off the top of my head; In order to understand "I" you have to be able to understand there's an "other". Do lions understand others are also fully capable beings? Or are they kinda of "egotistical" the way a human baby is, where they just don't really understand the concept of "other people". And do they understand what "seeing" is, so that they can use it in a sentence like that? That's also abstract, it communicates that you as a being are using your sense of sight to see a certain thing. Are lions conscious of the fact that they're seeing, or do they just see things?