Why the seal attempted to have sex with the penguin is unclear. But the scientists who photographed the event speculate that it was the behaviour of a frustrated, sexually inexperienced young male seal. Equally, it might be been an aggressive, predatory act; or even a playful one that turned sexual.
'Sex pest' seal attacks penguin
Necrophilia among ducks ruffles research feathers
http://education.guardian.co.uk/higher/research/story/0,9865,1432991,00.html




I don't think I need say any more
BBC