Sperm Whales Current Events | Sperm Whales News | 2
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'Bycatch' whaling a growing threat to coastal whales
Scientists are warning that a new form of unregulated whaling has emerged along the coastlines of Japan and South Korea, where the commercial sale of whales killed as fisheries "bycatch" is threatening coastal stocks of minke whales and other protected species. view more (2009-06-24)
Viagra may affect fertility
Researchers from Belfast reveal today that men who take Viagra when they are hoping to start a family could be affecting their fertility. A group lead by Dr Sheena Lewis at the Department of Obstetrics and Gynaecology at Queen's University Belfast have shown that while Viagra enhances sperm motility it also seems to speed up the 'acrosome... view more... (2004-03-31)
Low sperm count linked to organic solvents
Men repeatedly exposed to organic solvents are over twice as likely to have a low sperm count, reports a study in Occupational and Environmental Medicine. The higher the level of exposure the greater was the risk, with professional printers and painters and decorators most at risk, the study shows. The research team focused on over 1200 manual... view more... (2001-09-07)
Sperm created in the laboratory from embryonic stem cells produce viable progeny
Scientists have demonstrated for the first time that embryonic stem (ES) cells cultured in the laboratory can produce sperm with the capacity to produce viable offspring. view more (2006-07-12)
Tracking sperm whales and jumbo squid
The sperm whale and its large prey, the jumbo squid, are among the deepest divers in the ocean, routinely reaching depths of 3,000 feet or more. view more (2007-03-09)
Saving Sperm For A Later Date
The Monty Python song was right: every sperm is sacred - if you're living in the promiscuous world of chickens that is. Scientists studying the evolution of reproductive behaviour have shown that cockerels use sophisticated strategies to maximise reproductive return from limited sperm reserves. University of Leeds researcher Dr. Tom Pizzari said:... view more... (2003-11-03)
Beaked Whales Perform Extreme Dives to Hunt Deepwater Prey
A study of ten beaked whales of two poorly understood species shows their foraging dives are deeper and longer than those reported for any other air-breathing species. view more (2006-10-23)
Study Looks at Ways to Sustain Lobster Fishery
In the world of the lobster fishery, less may indeed be more. A new study may give hope to lobstermen struggling with declining lobster stocks, suggesting new ways that might improve the sustainability of the New England lobster fishery and reduce the risk of entangling whales and other marine life in lobster trap gear. view more (2006-07-06)
The precise role of seminal proteins in sustaining post-mating responses in fruit flies
Successful reproduction is critical to pass genes to the next generation. In sexually reproducing organisms, sperm enter the female with seminal proteins that are vital for fertility. view more (2007-12-18)
Low sperm count may be associated with prenatal testosterone excess
Exposure to an excess of sexual steroids, like testosterone, during fetal development may be a potential risk factor for low sperm count and motility. view more (2008-09-23)
Early whales gave birth on land
Two newly described fossil whales--a pregnant female and a male of the same species--reveal how primitive whales gave birth and provide new insights into how whales made the transition from land to sea. view more (2009-02-05)
The flying lemur a close relative
Our pedigree has been revised. Our closest relatives--gorillas, orangutans, chimpanzees, gibbon apes, and baboons--have been joined by an animal whose appearance hardly resembles that of humans: the Dermoptera or the flying lemur. Flying lemurs live in Southeast Asia. The largest species can be 75 cm tall. This animal can glide between trees... view more... (2002-06-19)
The secret sex life of seaweed revealed
Melbourne researchers have revealed for the first time the sex lives of red seaweed using sophisticated time-lapse video microscopy. "Until now, no one knew what exactly happens when these seaweeds become sexy," says University of Melbourne researcher, Dr Sarah Wilson. "Despite the fact that red seaweed is worth hundreds of millions... view more... (2002-08-18)
Hopes raised for cancer survivors who wish to be fathers
A study at the University of Edinburgh into the fertility of men who have survived chemotherapy and radiotherapy treatment for childhood cancer and leukaemia shows that despite generally low sperm counts , the DNA carried by their sperm appears to be undamaged, posing no increased risk of cancer or congenital defects to their children. And new... view more... (2002-09-03)
New research challenges advice that men should abstain from sex before fertility treatment
Madrid, Spain: New research by Israeli fertility experts has challenged current medical opinion, which holds that refraining from sex for up to a week at least is beneficial for men prior to undergoing some types of fertility treatment. Doctors and scientists from Soroka University and Ben-Gurion University of the Negev, Beer-Sheva, tested over... view more... (2003-06-27)
Sperm proteome gives "tantalising glimpse" towards the origin of sex
The first ever catalogue of the different types of proteins found in sperm could help reveal the origins of sex and explain some of the mysteries of infertility, say scientists. view more (2006-11-13)
Baby born from sperm frozen for record 21 years
UK researchers writing in Europe's leading reproductive medicine journal Human Reproduction[1], today (Tuesday 25 May) report what they believe to be a world record - a baby born using sperm that had been frozen for 21 years. "We believe this is the longest period of sperm cryopreservation resulting in a live birth so far reported in the... view more... (2004-05-23)
Study links high levels of nitric oxide to infertility and sperm DNA damage
Iranian scientists have linked a chemical that plays an essential role in many bodily functions to sperm DNA damage and male infertility. view more (2006-06-19)
FSU scientist warns North Atlantic right whale facing extinction
The North Atlantic right whale's future looks grim if the current mortality rates continue, according to Florida State University assistant professor of oceanography Douglas Nowacek and a group of fellow scientists from across the nation. view more (2005-07-25)
Proteins in sperm unlock understanding of male infertility says new study
Proteins found in sperm are central to understanding male infertility and could be used to determine new diagnostic methods and fertility treatments according to a paper published by the journal Molecular and Cellular Proteomics (MCP). view more (2008-10-09)
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