Sperm that don't swim well rank high among the main causes of infertility. To give these cells a boost, women trying to conceive can turn to artificial insemination or other assisted reproduction techniques, but success can ...
Bio & Medicine
Jan 13, 2016
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The chance of a male fathering offspring may not be a simple race to the egg, but is influenced by the length of the male's sperm, say scientists from the University of Sheffield.
Plants & Animals
Dec 9, 2014
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It may not have been love as we know it, but around 385 million years ago, our very distant ancestors—armoured fish called placoderms—developed the art of intercourse.
Plants & Animals
Oct 19, 2014
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Clever farming techniques would provide China with more than enough grain to feed its escalating population in the coming decades while easing stress on its environment, scientists reported on Wednesday.
Environment
Sep 3, 2014
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Researchers have developed new methods to trace the life history of individual cells back to their origins in the fertilised egg. By looking at the copy of the human genome present in healthy cells, they were able to build ...
Cell & Microbiology
Jun 29, 2014
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Sexual cannibalism in spiders – the attack and consumption of males by females before or after copulation – is very widespread. A new investigation analyses the reason behind such extreme behaviour, at times even before ...
Plants & Animals
Apr 23, 2014
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(Phys.org) —Increased nitrogen-use efficiency of plants and an associated reduced need for nitrogen-based fertilisers may be a step closer following University of Adelaide research on legumes.
Environment
Apr 1, 2014
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It has long been believed that the appearance of complex multicellular life towards the end of the Precambrian (the geologic interval lasting up until 541 million years ago) was facilitated by an increase in oxygen, as revealed ...
Earth Sciences
Feb 27, 2014
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243
Scientists have discovered a bacterium that could reduce the use of fertiliser in sugarcane production and improve yield.
Biotechnology
Dec 18, 2013
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(Phys.org) —Females exposed to a risk of sperm competition have been found to produce more defensive ova compared to the eggs of females reared under no risk of sperm competition, according to researchers at The University ...
Plants & Animals
Oct 17, 2013
3
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