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Scientists from Flinders University in Australia say they have identified the first example of penetrative sex in evolution. And wow, was it ever weird. Illustration: Brian Choo/Flinders University. The new study, which now appears in the journal Nature, describes the copulation technique of an ancient, armored fish called placoderms that lived about 385 million years ago in Scotland. Placoderms, a primitive jawed vertebrate, are the earliest vertebrate ancestors of humans. The study lead author, John Long, discovered the mating abilities when he stumbled across a single fossil bone in an Estonian collection. This video shows a simulation of the fish getting it on 鈥?and it could be considered a bit NSFW. The male member of the species, Microbrachius dicki yes, really , evolved bony L-sh
stanley bottles aped genital limbs called claspers that transfe
stanley termosy rred sperm to females; in turn, females developed small paired bones that locked the male organs in place for mating. It ;
stanley mug s considered the first example of a reproductive technique in fish that doesn ;t involve spawning, and the first use of internal fertilization and copulation as a reproductive strategy known in the fossil record. Long had this to say in a statement: Microbrachius means little arms but scientists have been baffled for centuries by what these bony paired arms were actually there for. We ;ve solved this great mystery because they were there for mating, so that the male could position his claspers into
