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Latest Spermatophore Stories

Study Shows Impact Of Polyandry On Reproductive Success In Fire Salamanders
2013-12-02 16:11:27

University of Bielefeld Researchers at Bielefeld University and the Technische Universität Braunschweig are the first to confirm the benefit of multiple paternities for a vertebrate under completely natural conditions. Together with their team, Dr. Barbara Caspers and Dr. Sebastian Steinfartz have shown that female fire salamanders mate with several males under natural conditions (so-called polyandry). This grants them fitness-relevant benefits by increasing their number of offspring. The...

Better Sex In Return For Nuptial Gifts
2013-10-24 13:41:15

[ Watch The Video: Male Spider Presents Gift Before Sex] Aarhus University A male spider that gives its selected female a nuptial gift is allowed to mate with her for a longer period of time and provide more sperm than a male that fails to come with a gift. If a male spider goes to the trouble of finding a good gift, wraps it up nicely in spider silk and offers it to a female he would like to mate, he has far better chances of fathering her offspring than if he skipped the present....

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2012-07-09 10:05:52

John Neumann for redOrbit.com - Your Universe Online A team of biologists from Tufts University in Boston may have answered the question of what attracts fireflies to each other. Dr. Adam South, with supervision from colleague Sara Lewis, who have been studying fireflies for 20 years, used LED lights to mimic the flashes of amorous male fireflies. In the wild, females are very picky about what males they reveal themselves to during this part of the courtship routine. Females will only...

Firefly Romance
2012-06-26 10:13:17

New insights into what goes on when the lights go off The twinkling of fireflies heralds summer romance for these magical insects. While courting on-the-wing, male fireflies attract females' attention with bioluminescent flashes. But new research from biologists at Tufts University's School of Arts and Sciences, published online in Proceedings of the Royal Society - Biological Sciences, reveals that, after the lights go out, female fireflies prefer substance over flash. They seem to...

Female Mate Searching Evolves When Mating Gifts Are Important
2011-09-28 12:34:39

In the animal world, males typically search for their female partners. The mystery is that in some species, you get a reversal -- the females search for males. A new study of katydids in the latest issue of the journal Proceedings of the Royal Society B -- co-authored by University of Toronto Mississauga professor Darryl Gwynne -- supports a theory that females will search if males offer a lot more than just sperm. "In this beast [in this study], it's a big cheesy, gooey substance that...

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2011-04-05 09:40:30

Firefly partners work together to find work-family balance Every parent with young children knows that couples need to work together to accomplish the myriad tasks waiting both at work and at home. But it may come as a surprise that fireflies also juggle their commitments to find a comfortable work-family balance. According to new research led by biologists at Tufts University's School of Arts and Sciences, wingless "stay-at-home" female fireflies get less support from their mates than...

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2008-09-08 10:54:28

Finding a mate can take considerable legwork as recently illustrated by the flightless and nocturnal Cook Strait giant weta Deinacrida rugosa. This cricket relative is found in New Zealand and is one of the world's heaviest insects with females weighing in at 20 g, averaging twice the size of males. In a field study on Maud Island, New Zealand, published in the September issue of The American Naturalist, evolutionary biologists from the University of Toronto at Mississauga discovered that...


Latest Spermatophore Reference Libraries

Megarian Banded Centipede, Scolopendra cingulata
2014-01-12 00:00:00

Scolopendra cingulata, with common names Megarian banded centipede and the Mediterranean banded centipede, is the most common scolopendromorph species in the mountainous locales of the Mediterranean region. S. cingulata can often be found under stones, rocks and fallen tree trunks where it rests during the day. The escolopendra, as it is referred to in Spanish, feeds nocturnally. S. cingulata has an amazing appetite for its size, eating cricket, worm, spider, moth and even young mice. It...

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Word of the Day
mundungus
  • A stinking tobacco.
  • Offal; waste animal product; organic matter unfit for consumption.
This word comes from the Spanish 'mondongo,' tripe, entrails.