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Male bats perform unwritten sex activity on female person , evidently to make sexual practice last longer , researchers say .
These finding , the first discovery of male person - to - female oral sex in cricket bat , match prior studies reveal thatfemale chiropteran perform fellatio , or unwritten sex , on male bats .
A male bat performs oral sex on a female bat after mating in this video still.
scientist analyzed a colony of about 420 Amerindic fly dodger ( Pteropus giganteus ) roost in a individual fig tree diagram in southern India , near the village of Nallachampatti . This yield - eating bat is one of the big bats in the world .
Over the trend of more than 13 months , using binoculars and a video recording tv camera , researcher witnessed 57 typesetter’s case of sex ― viva and coitus ― ordinarily in the morning .
" asunder from humans , bat also exhibit oral sex as a wooing conduct , " allege Ganapathy Marimuthu , a at-bat researcher at Madurai Kamaraj University in India .
ab initio , males groomed their member to go tumid before come near females . When they gently touched female with their wings , females typically move aside , and males followed . [ See Video of Bats Having Oral sexual urge ]
When the females stopped be active , the male start solve the females ’ vaginas ― the human action known ascunnilingus . This foreplay may help turn on and lubricate females , the researchers said .
Each case of cunnilingus typically lasted about 50 seconds . The males then ride the female for 10 to 20 seconds , and then go back to cunnilingus for 94 to 188 seconds .
The research worker found that the longer the least sandpiper of cunnilinctus before mating , the more copulation was prolong .
" It is possible that prolonged relation enablesthe mobility of sperm , " Marimuthu told LiveScience . " Such mobility of sperm increase the chance of conception . "
The scientists also noted that males might perform cunnilinctus on females so as to clean off competition ’ sperm . Doing so could help ensure their sperm , and not their rivals ' , impregnates the females .
" In this context , cunnilingus would be maladaptive after pairing , as there is a risk of slay the male person ’s own sperm cell , " the researchers publish . " Observation at close range is needed to come up out whether the male person ’s clapper enter the vagina or not . "
The bat species found to do male - to - female and female person - to - male person unwritten sex were fruit bats . unwritten sexual practice may occur in other coinage of fruit bat as well , Marimuthu suggested .
Marimuthu and Jayabalan Maruthupandian , also of Madurai Kamaraj University , detail their findings online March 28 the journalPLOS ONE .
