Read this piece in The Week magazine(Dec 4, 2005):

Zionnghaka,70, a tribal Christian cult leader, is a happy old man with 15 wives and more than 100 children. Though three wives deserted him and a few died, Zionnghaka faithfully followed tradition. Apparently he couldn't keep pace with his father Challianchana, the founder of the Channa cult which permits polygamy; he had 50 wives and unccountable children! The cult is now spread over four generations and boasts of 1,600 members. Hard work pays!

***************************************
So if you think that Tarzans no longer exist, think again!!