He has had it ever since he was a boy.
yes, i believe that when he has red eyes and a monkey's tail a chest hair...
Monkey
Goku's tail was removed by Kami in Dragonball. I believe one of the Kais regrew it in GT.
a ape has no tail and a monkey has a tail
it depends on how big/small the monkey is.
"Why do i need to cut my tail" said the monkey
goku and vegta
Yes, seahorses do have a tail of a monkey I know right weired.
yes
goku's grandfather is called grandpa gohan the person who pulls off goku's tail in dragonball
The possessive form of "monkey" is "monkey's." This indicates ownership or belonging to a monkey. For example, "The monkey's tail was long and agile."
he looks like a monkey with muscles