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Despite their languid nature and bulky dead body , manatee are astonishingly graceful in their reeking habitat . But do the mating behaviors of these so - call ocean cows rival the elegance of synchronized swimmers , or are the mammalian even more cowlike than meets the eye ?
Manateesare generally alone animals . Females ( moo-cow ) are often accompanied by their individual calf , and adult manatees frequent the sameseagrass bedsto feed . But by and large the animals only come together to pair , suppose Iskande Larkin , a manatee researcher at the University of Florida .
A manatee swims in the springs of Crystal River, Florida.
Manatees are reproductively active throughout most of the yr , though their sexual bodily function winds down in the winter when they ’re physiologically stressed , Larkin state Live Science .
It ’s unreadable how , on the nose , males find female person that are in estrus . The animals do occasionally give off squeaks or squeals , but these noises are reactions to the surround rather than mat song .
Finding partner may instead be driven by chemosensory ( scent ) clew , Larkin say
For one thing , research has show that manly Trichechus manatus show more searching behaviors when place in pools lace with urine from females in estrus than pools stop urine from non - estrus females . scientist have also noticed that manatees come out to have rendezvous point — fundamental smear in the river system where they match up — so it may be the pillowcase that females egest an anal gland mucus on log or other object to draw Male to them , Larkin suppose .
" We know that male can differentiate which female person is in estrous and which is not , " Larkin said . " If they can tell that from urine , then they can plausibly tell that from fecal [ sampling ] as well . "
Whatever the vitrine , female in estrous do n’t only tempt a single male person to them — they catch the attention of intact groups . The animal will make a so - called conjugation herd , in which up to a dozen male will follow and huddle together around a individual female to match with her .
" Males do n’t have tusk or claw or anything like that , but there ’s circumstances of pushing and shoving to get to the female , " Larkin said .
male person confining to the female in the writhing herd are the most dominant and fast-growing of the bunch , and have the secure chance to mate with her . But the males on the outside of the grouping are n’t just hang around doing nothing .
" They attempt to mate with each other , " Larkin state . " They ’re pulling ' it ' out all of the time . "
It ’s unidentified how or even if thefemale actively choose which male to pair within the herd — the felt up group swims around a lot and kick up sediment , making it difficult for research worker to identify different manatee .
To mate , a male will swim beneath the female and align his consistence with hers , oral sex - to - head and tail - to - tail . He ’ll then savvy her flippers and insert his penis into her vagina . union typically lasts for a few minutes , Larkin said . [ The Weirdest Animal Penises ]
The mating herds will last for about two to four hebdomad and can get quite vivid , with female sometimes trying to strand themselves to get by from their suer .
Once the herd disbands , the male will go on with their life story and look for other females .
" And the female probably takes a fully grown sigh of relief and sleeps a lot , " Larkin said .
