LOL...
I actually read something to that effect on a virolgy web site. The person stated it was common in africa to have sex with animals. Sick sick sick!
People have their customs and traditions and you can’t change them.
A woman I once worked with and her husband went to one of those West Africa countries to minister to these people and teach them better ways of doing things to improve their lives. They could try to teach, for example, the practice of safe sex and monogamy to minimize sexually transmitted disease and the people would listen politely, but in the end they would continue in their ways because their practices are “traditions” and they have lived this way for centuries.