'Old' sperm produces healthier offspring
Sperm that live for longer before fertilising an egg produce healthier offspring—according to new research from the University of East Anglia and Uppsala University in Sweden.
Sperm that live for longer before fertilising an egg produce healthier offspring—according to new research from the University of East Anglia and Uppsala University in Sweden.
Evolution
Feb 14, 2019
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232
Diversity, be it genetic, morphological, behavioural or ecological, is at the heart of many controversies. It fascinates us or worries us, depending on the context. But what is biological diversity? How useful is it, how ...
Evolution
Dec 7, 2018
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9
Scientists have identified a protein involved in the life cycle of the malarial parasite, paving the way for a new vaccine to reduce disease spread.
Cell & Microbiology
Dec 6, 2017
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22
Joint research by the University of Otago and University of Canterbury has revealed that male salmon can adjust their sperm's swimming speed if competing with a rival to reproduce.
Plants & Animals
Oct 30, 2017
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19
Leonie the leopard shark has made a switch that could save her species – becoming the first shark recorded to change from sexual to asexual reproduction.
Plants & Animals
Jan 17, 2017
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648
The ability of an endangered whale species to recover is jeopardized by increasing rates of entanglement in fishing gear and a resultant drop in birth rates, according to scientists who study the animal.
Ecology
Aug 31, 2016
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0
Chinese genetic scientists must not be put off sensitive research by ethical concerns, the team behind a controversial study on modified human embryos said Wednesday as debate erupted over the paper.
Biotechnology
Apr 13, 2016
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263
Whether an insect will have a male or female offspring depends on the weather, according to a study led by Joffrey Moiroux and Jacques Brodeur of the University of Montreal's Department of Biological Sciences. The research ...
Plants & Animals
May 22, 2014
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With little research on how nutrition affects reproductive performance in dairy cows, it is generally believed that a cow needs a higher energy intake before calving. Research by University of Illinois scientists challenges ...
Other
Aug 13, 2013
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A U.S. patent has been granted to a Kansas State University-developed "candy" that stimulates the growth, health and reproductive functions of cattle, bulls and other livestock.
Plants & Animals
Jun 6, 2013
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