One day the zookeeper noticed that the Orangutan was reading two books - the Bible and Darwin's Origin of Species.
In surprise he asked the ape, "Why are you reading both those books"?
"Well," said the Orangutan, "I just wanted to know if I was my brother's keeper or my keeper's brother."
Chuck Norris was the fourth wise man, who gave baby Jesus the gift of beard, which he carried with him until he died.
The other three wise men were enraged by the preference that Jesus showed to Chuck's gift, and arranged to have him written out of the bible.
All three died soon after of mysterious roundhouse-kick related injuries.