Friday, January 9, 2009

The blanket octopus


The male blanket octopus spends his existence drifting along waiting to meet with a female. If the male meets a female, he fills one of his tentacles with sperm and tears it from his body. He gives this sperm-filled tentacle to the female which she then uses to fertilize her eggs. Afterwards, the female leaves the male who floats away and dies.

Double yikes:

An unusual defense mechanism in the species has evolved: blanket octopuses are immune to the poisonous Portuguese man o' war, whose tentacles the female rips off and uses later for defensive purposes.

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