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
he looks like a monkey with muscles
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."