Roger Hanlon - The male cuttlefish has quite a challenge on his hands...

The male cuttlefish has quite a challenge on his hands when it comes to the end of their yearly life cycle. There are four, five, even ten males for every female on the spawning grounds, so the challenge they face is, 'How do I get my genes into the next generation?' There's enormous competition among the males for the relatively few females that are on the spawning ground.