For the first time, male flies of a serious agricultural pest, the medfly, have been bred to generate offspring that die whilst they are still embryos. Researchers writing in the open access journal BMC Biology describe the ...
Jan 27, 2009
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New research suggests that men are what they eat, at least when it comes to reproductive health.
Ecology
Jul 18, 2011
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Using holographic imaging system, the microscope can produce phase and amplitude images of semen samples in the field and identify which are moving and which are immotile.
Analytical Chemistry
Oct 11, 2010
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Contrary to predictions, males of high genetic quality are not very successful when it comes to fertilizing eggs. A new study on seed beetles by Swedish and Danish scientists Göran Arnqvist and Trine Bilde shows that when ...
Plants & Animals
Jun 25, 2009
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Mammalian sperm cannot fertilize an egg from the get-go. It's an ability acquired only after insemination, during passage through the female reproductive tract, and requires two consecutive, time-sensitive processes to provide ...
Cell & Microbiology
Aug 20, 2021
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415
A new study has found the distribution of females in 33 species of Australian rodents affects the evolution of testes size of males in these social species.
Plants & Animals
May 4, 2022
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87
Living with a female mouse can extend the reproductive life of a male mouse by as much as 20 percent, according to a study conducted by Ralph Brinster and a team of other researchers at the University of Pennsylvania School ...
Jan 22, 2009
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Current tests for male fertility include measuring the concentration and motility of spermatozoa. However, other characteristics of sperm, such as their ability to follow a chemical trail to the egg, can influence the likelihood ...
Analytical Chemistry
Feb 19, 2020
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11
For many animals, pheromones, which are chemical cues used for communication, guide important decisions such as whom to mate and whom to fight. New research from scientists at the University of Hawai'i - Mānoa's (UHM) Pacific ...
Plants & Animals
Sep 15, 2015
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22
Infertility is one of the most striking effects of aging. The impact of aging on females' fertility is more severe and much better understood, but it also affects males. Male reproductive aging is less researched, but of ...
Plants & Animals
Jul 6, 2020
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