Although some marriages have been forced upon people as a punishment, there have been some which arise from genuine love or the animal in question.
Joseph Guiso of Toowoomba, Australia, was walking his dog in a park one afternoon when he saw a marriage being conducted there.
This experience was the inception of his idea to marry his dog, a female Labrador called Honey.
At a service in the same park, celebrated before friends and family (the bride's side being rather sparsely represented), he read vows to love her forever. Mr Guiso assured reporters that the marriage would not be consummated.
The love of animals, sexual or romantic, is called zoophilia.