In the depths of the oceans inhabit amazing fish in all respects.
Fish belongs to the order of deep-water anglers. Among its other features, there is one that is perhaps not found any more in any other species of fish, and animals in general. All the matter in a very unusual way of reproduction. In the mating season, males anglers that are significantly smaller than females, driven by instinct seek out females on the trail of pheromones, which is almost stagnant water of the deep sea is stored for a long time. Searches for her in the dark. Having found a female, they literally clings to her sharp teeth and no longer had never been released.
And if you think that the poor female victim becomes distraught neighbor, do not rush to conclusions. Nature has identified a curious outcome of this battle of love. Biting into the flesh of the female, the male calms down and hangs on her passive ballast. Over time, the body of fish grow together. The male are reduced jaw, eyes, intestines. Their circulatory systems are combined and ultimately the once separate and self-sufficient individuals can only male sex gland that produces milk needed for fertilization of eggs, and exists only by the resources of the body of the female. It is noted that if for any reason the male, nevertheless, fall off from the female, then her body remains an open wound, which causes her suffering, leads to infection of the blood, from which, as a result, the female dies.
In my opinion, this is a perfect illustration of the behavior of some people building their relationship, like the angler.
Centrophryne spinulosa with her husband.
Source: dimka-jd.livejournal.com