(PhysOrg.com) -- On the eve of Charles Darwin’s 200th birthday, researchers at the University of New Mexico and University of Montana report a new twist in sexual selection theory - the realm of evolutionary science that ...
Feb 6, 2009
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The female genital tract can be a hostile environment for conception. Out of about 100 million sperm, only a few hundred make it to the fallopian tubes. Guided by a directional movement called rheotaxis, sperm cells swim ...
Biochemistry
Mar 31, 2022
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Switching from a restricted diet to eating as much as you like could be beneficial for reproduction in later life, according to new research from the University of East Anglia.
Molecular & Computational biology
Nov 23, 2021
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Female tree skinks can reproduce even when they have not encountered a male for more than a year, by storing sperm from previous mates, according to new research.
Plants & Animals
Sep 23, 2021
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Scientists at UC San Francisco have detected 109 chemicals in a study of pregnant women, including 55 chemicals never before reported in people and 42 "mystery chemicals," whose sources and uses are unknown.
Environment
Mar 17, 2021
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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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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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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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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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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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