1] Rama is a hero from a mythical story. The epic could have be based on some real personality, some ancient king. But in later periods, people started projecting him as a deity and interpolated Ramayana. 2] As they were all mythical creatures, you cant know which species they belong to. The spinx, centaurs, dont have any species either. 3] Since they never existed, there's no way to trace where they all went. 4] It's mythology. They protrayed him as blue skinned. 5] Again, mythology, or call it someone's superstitious beliefs. There's no rationale explanation for that 6] If Rama was based on a real king, of course he died. It's possible that Valmiki lived at the time of that king
