Climate change threatens to cause mass extinctions – but how, exactly? New research suggests male fertility may be the weakest link.
While media portrayals of online sperm donation often portray “rogue breeders” or “super sperm,” research reveals that the real men who do this are motivated to help others.
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Nicole Bergen, L’Université d’Ottawa/University of Ottawa
Sperm donation websites are the Ubers and Airbnbs of the fertility world. But why are they so popular? New research explains the reasons why some men donate.
It’s not just women who need to consider their age when planning a family.
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A new study shows that as the father’s age increases, so too the chances of the baby being born prematurely, having a low birth weight, or requiring medical intervention after delivery.
Men currently only have two contraceptive options: condoms or a vasectomy.
Javier Canales
Male contraceptives have been under development for at least the past 50 years, because of the success of the female pill and pessimism about men taking a pill.
At least half of the donors who had donated anonymously were in favour of their offspring being able to know their identity.
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The news that Victorian sperm donor records from the 1970s and 1980s were preserved and are now accessible creates both challenges and opportunities for both donors and their offspring.
Cross-sections of the spermatozoa of the Monogene Chimaericola leptogaster as seen under an electron microscope.
Jean-Lou Justine
An ancient sexual conflict over mitochondrial inheritance may be responsible for the evolution of the two sexes as we know them.
Egg donors, sperm donors and surrogates are critical participants and patients in the use of reproductive technologies - so why are their rights and heath repeatedly overlooked?
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Health Canada is drafting important regulations for assisted reproductive technologies. Initial documents treat egg donors and surrogates as little more than spare parts and walking wombs.
Is this actually a possible future?
Screenshot, IMDB
In 1997, scientists announced they’d created a healthy sheep cloned from another ewe’s mammary gland cell. Two decades on, the technique is being refined and applied to new challenges.