i don't think babies appear....
or else they appear but you can't really tell b/c they don't move on their own.
and red is for fire, which caused his death, as it was mentioned before.
some other colors:
green: disease
blue: drowning
yellow: starvation (*i think*)
white: old age
there might be more but idk what they are.
and if you want i can give you some tips on how to bring back dead sims
pm me
There's also i think green if you feed them to that weird cow plant thing in CL. The cow plant thing works good it's just that, after awhile, your lot's filled with ghost lol. (^.^)