News tagged with giant sperm
Size did matter -- evidence of giant sperm found in microfossils
Jun 18, 2009 |
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The mystery of giant sperm present in some living animal groups today has now taken on a new dimension -- in one group of micro-crustaceans new evidence shows that it is a feature at least 100 million years ...
Search results for giant sperm
Study Positively Identifies Giant Squid Presence in Gulf of Mexico
Sep 21, 2009 |
4.7 / 5 (6) |
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(PhysOrg.com) -- During a recent research cruise, a rare giant squid was captured in the Gulf of Mexico.
China announces first panda from frozen sperm
Jul 24, 2009 |
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(AP) -- China announced the first successful birth of a panda cub from artificial insemination using frozen sperm, giving a new option for the famously unfertile endangered species, officials said Friday.
Sperm may play leading role in spreading HIV
Medicine & Health / HIV & AIDS
Oct 26, 2009 |
5 / 5 (1) |
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Sperm, and not just the fluid it bathes in, can transmit HIV to macrophages, T cells, and dendritic cells (DCs), report a team led by Ana Ceballos at the University of Buenos Aires in Argentina. By infecting ...
Pandas mate with help at the National Zoo
Biology /
Mar 24, 2008 |
2.3 / 5 (3) |
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U.S. veterinarians have artificially inseminated Mei Xiang, a female giant panda at the Smithsonian's National Zoo, after natural mating was unsuccessful.
Hope for men with nonobstructive infertility
Dec 03, 2009 |
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It has been thought that men with non-obstructive azoospermia (NOA), a lack of sperm in the semen not caused by an obstruction within the reproductive system, are poor candidates for IVF. Now, researchers writing in the open ...
Nine rescued whales beach again in Australia
Mar 25, 2009 |
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All but one of the 10 whales that survived a mass beaching on Australia's west coast were Wednesday believed to have come back ashore and were unlikely to survive, authorities said.
Sperm donor passed on sudden death heart defect
Oct 20, 2009 |
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(AP) -- A sperm donor passed on a potentially deadly genetic heart condition to nine of his 24 children, including one who died at age 2 from heart failure, according to a medical journal report.
'The pill' for him: Scientists find a hormonal on-and-off switch for male fertility
Nov 30, 2009 |
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A new research report published in the December 2009 print issue of The FASEB Journal could one day give men similar type of control over their fertility that women have had since the 1960s. That's because scientists have f ...
Lightweight and long-legged males go the distance for sex
Biology /
Sep 05, 2008 |
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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 ...
Researchers Discover the 'Big Sperm Paradox'
Biology /
Jun 08, 2006 |
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Syracuse University Ph.D. student Adam Bjork is a man on a mission: to unlock the mysteries of cryptic female choice. He’s not studying psychology or trying to get a date—he’s a student of biology in SU’s College ...
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