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| Porn Users Forum » Female dragonflies fake sudden death to avoid male advances |
| 1-7 of 7 Posts | Page 1 |
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| 10-25-17 09:17am - 2412 days | Original Post - #1 | |
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lk2fireone (0)
Active User  Posts: 3,618 Registered: Nov 14, '08 Location: CA |
Female dragonflies fake sudden death to avoid male advances https://www.newscientist.com/article/212...avoid-male-advances/ New Scientist 27 April 2017 Female dragonflies fake sudden death to avoid male advances By Sandrine Ceurstemont Female dragonflies use an extreme tactic to get rid of unwanted suitors: they drop out the sky and then pretend to be dead. Rassim Khelifa from the University of Zurich, Switzerland, witnessed the behaviour for the first time in the moorland hawker dragonfly (Aeshna juncea). While collecting their larvae in the Swiss Alps, he watched a female crash-dive to the ground while being pursued by a male. The female then lay motionless on her back. Her suitor soon flew away, and the female took off once the coast was clear. “I was surprised,” says Khelifa, who had never previously seen this in 10 years of studying dragonflies. Female moorland hawkers are vulnerable to harassment when they lay their eggs since, unlike some other dragonflies, they aren’t guarded by their male mates. A single sexual encounter with another male is enough to fertilise all eggs and copulating again could damage their reproductive tract. Khelifa found that the females often retreat to dense vegetation near ponds at this time, probably to hide. And they often act dramatically when they emerge. High-speed plunge He observed 27 out of 31 females plummeting and playing dead to avoid males, with 21 of these ploys successful. Plunging at high speed is risky though, and according to Adolfo Cordero-Rivera at the University of Vigo in Spain, it may be a strategy that they use only in areas with lots of dragonflies. “Females may only behave in this way if male harassment is intense,” he says. Few animals have been caught feigning death to trick suitors. The behaviour has been seen in a species of spider (the males use it to improve their chances of mating), two species of robber fly and a type of mantis. Playing dead to avoid predators, however, is more common and has been observed in dragonflies. “It’s likely that females expanded its use to overcome male coercion,” says Khelifa. Khelifa is interested in finding out whether the behaviour is unique to species that lay eggs alone or whether it is more widespread. Using extreme tactics to resolve sexual conflict isn’t unique to moorland hawkers: in their damselfly relatives, for example, females eat their partner. Journal reference: Ecology, DOI: 10.1002/ecy.1781  Copyright New Scientist Ltd. | |
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| 10-26-17 04:31pm - 2411 days | #2 | |
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RagingBuddhist (0)
Disabled User  Posts: 893 Registered: Jan 23, '07 |
All well and good for the females - until a male comes along that's into necrophilia. Sarcasm is a body's natural defense against stupidity. | |
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| 10-27-17 06:42am - 2410 days | #3 | |
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Amanda (0)
Active User  Posts: 534 Registered: Jul 02, '15 Location: Montreal, Quebec |
Ha ha ha! So true! | |
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| 10-28-17 08:29pm - 2409 days | #4 | |
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Drooler (0)
Disabled User  Posts: 1,831 Registered: Mar 11, '07 Location: USA |
Seems like a case of make it 'til you fake it. I wanted something new, so I left England for New England. | |
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| 10-30-17 04:01pm - 2407 days | #5 | |
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biker (0)
Active User  Posts: 632 Registered: May 03, '08 Location: milwaukee, wi |
That will all end when the female discovers the effectiveness of pepper spray. Warning Will Robinson | |
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| 10-31-17 07:07am - 2406 days | #6 | |
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iknowwazzup (0)
Active User  Posts: 132 Registered: Jan 06, '16 Location: United States |
But really who hasn't faked a death to get out of a date? I tried it once, but it got complicated. My cousin called my poor mother and demanded to know why she was the only family member at my fake wake. | |
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| 10-31-17 07:35am - 2406 days | #7 | |
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lk2fireone (0)
Active User Posts: 3,618 Registered: Nov 14, '08 Location: CA |
iknowwazzup, DID YOUR COUSIN AT LEAST HAVE PLENTY OF GOOD LIQUOR TO KEEP HER COMPANY, AND TO DROWN HER SORROWS? I REMEMBER GETTING INTO AN ELEVATOR ONE DAY, YEARS AGO, AND SUZANNE PLESHETTE (THE ACTRESS FROM THE BOB NEWHART SHOW) WAS INSIDE. I THINK I SAID I WAS A FAN, AND REALLY ENJOYED HER ACTING. HER RESPONSE: SHE SAID SHE COULDN'T TALK TO ME, BECAUSE A FRIEND OF HERS HAD JUST DIED. SOME ACTORS ARE VERY APPROACHABLE, AND WILL TALK TO FANS, OR AT LEAST ACKNOWLEDGE THEM. BUT OTHERS PREFER TO REMAIN PRIVATE. I ALWAYS WONDERED, AFTERWARD, IF A FRIEND OF HERS HAD REALLY DIED, OR IF IT WAS A POLITE WAY TO SAY BUZZ OFF. | |
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