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Single molecular 'mark' seen as pivotal for genome compaction in spores and sperm
In higher order animals, genetic information is passed from parents to offspring via sperm or eggs, also known as gametes. In some single-celled organisms, such as yeast, the genes can be passed to the next generation in spores. view more (2006-09-18)
Calm before the spawn: Climate change and coral spawning
What's the point of setting up marine reserves to protect coral reefs from pollution, ship groundings and overfishing if climate change could cause far more damage? A study published this week in London in Proceedings of the Royal Society B provides the answer. view more (2009-11-04)
Opioids and cannabinoids influence mobility of spermatozoids
A PhD thesis from the University of the Basque Country has concluded that there are opioid and cannabinoid receptors in human sperm and that these influence the mobility of spermatozoid. view more (2008-06-23)
Mercury in Mackenzie River delta dramatically higher than previously believed
University of Alberta researchers conducting a water study in the Mackenzie River Delta have found a dramatically higher delivery of mercury from the Mackenzie River to the Arctic Ocean than determined in previous studies. view more (2009-06-17)
Whales and dolphins influence new wind turbine design
Sea creatures have evolved over millions of years to maximise efficiency of movement through water; humans have been trying to perfect streamlined designs for barely a century. view more (2008-07-08)
Study allays fears about the physical and psychological development of ICSI children
Lausanne, Switzerland: Children born with the help of intracytoplasmic sperm injection (ICSI) appear to be developing normally, despite earlier concerns about their physical and psychological development, according to American researchers. Dr Gianpiero Palermo, from the Center for Reproductive Medicine and Infertility at Cornell University, USA,... view more... (2001-07-01)
Researchers to Develop Ocean Sanctuary "Noise Budget" to Identify Sources and Evaluate Potential Impact on Marine Mammals and Fish
Like sentinels at their posts, an array of buoys equipped with underwater microphones and other sensors will be on duty in the Stellwagen Bank National Marine Sanctuary off the coast of Massachusetts for the next 30 months, recording sounds from whales, fish, ships and other sources around the clock. view more (2008-04-02)
Study shows that genetic quality of sperm deteriorates as men age
New research indicates that the genetic quality of sperm worsens as men get older, increasing a man's risk of being infertile, fathering unsuccessful pregnancies and passing along dwarfism and possibly other genetic diseases to his children. view more (2006-06-06)
Smoking decreases men's chances of fatherhood by IVF and ICSI
Men who smoke reduce their chances of successfully fathering a child by either standard IVF techniques or by ICSI, according to research carried out in Germany. Dr Michael Zitzmann told the European Society of Human Reproduction and Embryology annual conference in Vienna that smoking altered the DNA of sperm and he believed this hampered the... view more... (2002-06-30)
Link between beef consumption during pregnancy and reduced sperm quality in sons
New research has shown that women who ate a lot of beef while pregnant had sons who were more likely to suffer from poor sperm quality as adults, and it suggests that the growth promoters used in cattle may play a role in these men's reduced fertility. view more (2007-03-28)
Norway, Japan prop up whaling industry with taxpayer money
The governments of Norway and Japan are using taxpayer money to subsidize their unprofitable whaling industries, according to a first-time analysis of the economics of whaling. view more (2009-06-19)
US researchers find first conclusive evidence that lead is linked to male infertility
US fertility experts today (Thursday 6 February) published the first conclusive evidence that lead is linked to male infertility. A report in Europe's leading reproductive medicine journal Human Reproduction[1] concludes that exposure to lead damages sperm function and may be a contributory cause of unexplained male infertility.[2] The findings... view more... (2003-02-02)
Increased environmental carbon levels - the good news!
Increasing carbon levels can be a good thing in some cases: scientists at the University of Durham propose that higher levels of inorganic carbon can have a positive influence on human health. view more (2006-04-03)
Iron Fertilisation Of The Ocean Raises The Food Supply Of Marine Animals And Transports Carbon Dioxide To The Deep Ocean
An international team of scientists that recently carried out an experiment in the South Atlantic on board RV „Polarstern" of the Alfred Wegener Institute for Polar and Marine Research has found that an algal bloom induced by iron fertilisation transported carbon dioxide to the deep ocean. The bloom also stimulated growth of zooplankton... view more... (2004-04-05)
Rise in ICSI cycles suggests infertility could be affecting more men than women
Infertility may be becoming more of a man's problem than a woman's problem according to new figures released at the 21st annual conference of the European Society of Human Reproduction and Embryology. view more (2005-06-22)
Marine Biology Mystery Solved: Function of "Unicorn" Whale's 8-foot Tooth Discovered
Today, Harvard School of Dental Medicine (HSDM) researcher Martin Nweeia, DMD, DDS, answers a marine science question that has eluded the scientific community for hundreds of years: why does the narwhal, or "unicorn," whale have an 8-foot-long tooth emerging from its head, and what is its function? view more (2005-12-14)
Gene breakthrough heralds better prospect for malaria solution
Scientists have made a major breakthrough in understanding the genetics of the insect parasite that is being targeted by researchers as a way of preventing the spread of malaria. view more (2006-07-25)
Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring
The science has long been clear that smoking causes cancer, but new research shows that children could inherit genetic damage from a father who smokes. view more (2007-06-01)
Durable critters providing insight for human egg preservation
A tiny, six-legged critter that suspends all biological activity when the going gets tough may hold answers to a better way to cryopreserve human eggs, researchers say. view more (2006-12-19)
Pride of Bilbao to keep check on the ocean`s health
P&O Portsmouth`s ship Pride of Bilbao has recently taken on board more than her regular load of passengers. A box of scientific sensors has been installed in the ship`s engine room to collect valuable data about the state of the ocean each time she sails from Portsmouth through the diverse Bay of Biscay to Spain and across the Channel to Cherbourg. view more (2002-06-05)
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