It's likely you've never heard of a hihi, let alone seen one in the wild. Also known as stitchbirds, these colourful little critters are a true taonga, or treasure. They're only found in New Zealand, and currently restricted ...
Ecology
Apr 12, 2018
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A new study led by Macquarie University and spanning Sydney and Oslo has shown that exposure to extreme temperatures, such as those experienced during heatwave conditions, significantly reduces sperm quality in zebra finches, ...
Ecology
Jan 19, 2018
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139
Biologists studying a small, colorful fish in the Mediterranean Sea have discovered a new way in which a female can choose the best father for her offspring.
Plants & Animals
Aug 16, 2016
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234
A study led by researchers at The University of Nottingham has discovered that the fertility of dogs may have suffered a sharp decline over the past three decades.
Plants & Animals
Aug 9, 2016
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As a young(ish) female, I have been cautioned many times over the years that if I want to be taken seriously then I shouldn't make jokes about my work on sperm, and that it is probably better to avoid talking about my research ...
Plants & Animals
Jul 23, 2015
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Males with low sperm quality probably won't get much help from dining down on fish oil supplements and a bag of carrots, recent aquatic-based research suggests.
Plants & Animals
Jun 25, 2015
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23
(Phys.org)—Many intuitions drawn from our machine world do not smoothly extended to the biological. Whereas the screws or other fasteners used in an automobile typically tend to loosen over time with use, the hardware found ...
An animal biologist says poor nutrition results in genetic damage to sperm cells and lower sperm motility for rams.
Plants & Animals
Aug 20, 2014
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An experimental study from researchers at Uppsala University provides evidence that in Atlantic salmon, selection acting upon sperm phenotypes within a single ejaculate of a male affects the time until hatching in the resulting ...
Plants & Animals
Feb 13, 2014
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When females mate with more than one male, each one's sperm has to compete to get to her eggs. Until now, researchers had thought the fastest sperm would dominate.
Evolution
Jan 31, 2014
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