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Evolution of animal personalities
Animals differ strikingly in character and temperament. Yet only recently has it become evident that personalities are a widespread phenomenon in the animal kingdom. view more (2007-05-31)
Fish evolve a longer lifespan by evolving a longer reproductive period, researchers find
A UC Riverside-led research team has found that as some populations of an organism evolve a longer lifespan, they do so by increasing only that segment of the lifespan that contributes to "fitness" - the relative ability of an individual to contribute offspring to the next generation. view more (2005-12-27)
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)
Diatoms discovered to remove phosphorus from oceans
Scientists at the Georgia Institute of Technology have discovered a new way that phosphorus is naturally removed from the oceans -- its stored in diatoms. The discovery opens up a new realm of research into an element that's used for reproduction, energy storage and structural materials in every organism. The research appears in the May 2, 2008,... view more... (2008-05-05)
Sexual reproduction delays aging in a mammalian species
Past research on aging and the life histories of diverse species has shown that sexual reproduction is biologically costly for individuals and tends to decrease lifespan rather than increase it. view more (2006-02-22)
Yeast missing sex genes undergo unexpected sexual reproduction
An emerging form of the pathogenic yeast Candida is able to complete a full sexual cycle in a test tube, even though it's missing the genes for reproduction. view more (2009-05-26)
Preterm birth linked to lifelong health issues
The healthcare implications of being born premature are much broader and reach further into adulthood than previously thought, according to a long-term study of more than a million men and women by Duke University and Norwegian researchers. view more (2008-03-26)
Media invitation: "Life before and life after IVF": experts coming from all Mediterranean countries meet in Cannes to discuss ethical aspects and new frontiers in reproductive medicine
Experts of different fields in medicine and coming from every corner of Mediterranean area, will meet in Cannes from April 21st to April 23rd in occasion of the congress "Life before and life after IVF", organized by the Mediterranean Society for Reproductive Medicine (MSRM). The aim of the meeting is discussing new perspectives and hot... view more... (2005-04-15)
Researchers at Illinois explore queen bee longevity
The queen honey bee is genetically identical to the workers in her hive, but she lives 10 times longer and - unlike her sterile sisters - remains reproductively viable throughout life. view more (2007-05-09)
Symbiotic fungus does not depend on fungus-farming ants for reproduction, researchers say
Fungus-farming ants around the world cultivate essentially the same fungus and are not as critical to the reproduction of the fungi as previously believed, biologists at The University of Texas at Austin have discovered. view more (2006-06-28)
Why have sex? The answer is not as simple as we thought.
Theories abound as to why organisms favour sexual reproduction, but testing these has been notoriously difficult. A common view is that sexual reproduction helps to reduce the effects of damaging mutations within a population. Now researchers from the Rockefeller University have tested this premise, using careful measurements of bacterial... view more... (2003-05-28)
Malaria : Plasmodium togetherness a strategy for breeding success
Malaria, which infects 600 million people in the world and leads annually to 2 million deaths, is the most widespread of infectious diseases. The pathological agent is a microscopic parasite of the Plasmodium genus which develops inside the host's erythrocytes. Plasmodia go through a series of asexual reproduction cycles before a transition takes... view more... (2004-02-20)
Sex: Why bother? Evolutionary mysteries probed at UH
What advantage did sex offer when it first appeared and why does sex persist in modern organisms, stopping them from becoming asexual again? view more (2006-03-02)
Pregnancies from frozen eggs may help couples trapped by Italian law
Berlin, Germany: Five children have been born conceived from previously isolated and frozen egg cells, Italian scientists announced today (Wednesday 30 June 2004) at the 20th annual conference of the European Society for Human Reproduction and Embryology. The method bears great promise for patients who live in countries where embryo... view more... (2004-06-29)
Parasitic worms make sex worthwhile
The coevolutionary struggle between a New Zealand snail and its worm parasite makes sex advantageous for the snail, whose females favor asexual reproduction in the absence of parasites, say Indiana University Bloomington and Swiss Federal Institute of Technology biologists in this week's Current Biology. view more (2009-07-24)
Why do insects like to eat some plants more than others?
In a study appearing in the forthcoming issue of The American Naturalist, Tom E. X. Miller, Andrew J. Tyre, and Svata M. Louda (all of the University of Nebraska, Lincoln) examined herbivore dynamics, specifically why plants aren't all eaten at the same rate. view more (2006-11-14)
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)
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)
Size did matter
The mystery of giant sperm present in some living animal groups today has taken on a new dimension. In one group of micro-crustaceans new evidence shows the feature is at least 100 million years old. view more (2009-06-19)
Yale biologists 'trick' viruses into extinction
While human changes to the environment cause conservation biologists to worry about species extinction, Yale biologists are reversing the logic by trying to trap viruses in habitats that force their extinction, according to a report in Ecology Letters. view more (2007-02-13)
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