Look here . An American marine ribbon insect is giving birth .
frankly , it does n’t look terribly dramatic : there ’s a petty writhing , and a miniature Prosorhochmus americanus crawls out of its mother ’s anus and head off on its merry room . But for these beast , giving parturition through the anus is the least weird part of their generative process .
First , although this particular worm is perfectly adequate to of couple with another phallus of its species , most of the time it make baby by putting its own sperm on its own eggs .
secondly , because those eggs never depart the ovary , they get fertilized in there and the babe worms – up to three at a sentence – turn inside the organ . And when the child are ready to be born , they have a problem . According toClint Turbeville , an spineless biologist at Virginia Commonwealth University , the worm do n’t have a dedicated reproductive canal that would allow the babies out of the ovary .
alternatively , explainsSerena Caplins , a doctoral student at UC Daviswho has read these fauna , each baby worm pushes first through the wall of the ovary and then through its mother ’s intestinal wall . “ Once it ’s in its mom ’s intestine , it swims out through its mom ’s anus . ”
“ The mummy ’s OK afterwards , ” Caplins stress . “ They just regenerate and keep making babies . ”
[ Maslakova and Norenburg 2008|Turbeville and Caplins 2010 ]
Video by SA Caplins viaLabNemertea
get hold of the generator at[email protected ] .
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