GUADALAJARA, Mexico - Five Bengal tigers, four of them white males, have debuted at a zoo in western Mexico.

The litter, which was born in April and went on display Wednesday, was the result of a natural breeding program, Guadalajara Zoo director Francisco Rodriguez said.

It was the sixth litter of white tigers born at the zoo, which is known for having produced the cat that attacked Las Vegas entertainer Roy Horn of the Siegfried and Roy act.

The tigers' father, Nino, has sired every litter born at the zoo.