There are many biological tools that help animals ensure reproductive success. A new study in The Journal of Cell Biology provides further detail into how one such mechanism enables male fruit flies to improve their odds ...
Cell & Microbiology
Aug 25, 2014
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New research from The University of Western Australia's Centre for Evolutionary Biology has found evolutionary kicking behaviour of female seed beetles (Callosobruchus maculatus) has been 'hi-jacked' by males to promote their ...
Plants & Animals
May 13, 2014
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It is fair to say we belong to a species obsessed by sex. We are among the only species to have sex for fun, not just for reproduction. For some other species, though, sex is far from fun. In fact, as two recent review papers ...
Plants & Animals
Mar 11, 2014
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Female promiscuity—something that occurs in a majority of species, including humans—results in the ejaculates from two or more males overlapping within her reproductive tract. When this happens, sperm compete for fertilization ...
Evolution
Sep 26, 2013
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In the foothills of the Santa Cruz Mountains two closely related species of mice share a habitat and a genetic lineage, but have very different social lives. The California mouse (Peromyscus californicus) is characterized ...
Biotechnology
Aug 30, 2012
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A team of New York University biologists has uncovered a previously unknown role for a set of cells within the female reproductive tract of fruit flies that affects the functioning of sperm and hence fertility. Their discovery, ...
Plants & Animals
Nov 8, 2011
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For University of Wisconsin-Milwaukee researchers studying the toxicity of gold nanoparticles - a minuscule material with potentially big biomedical applications - the road to a new medical advance may or may not be paved ...
Bio & Medicine
Jul 22, 2011
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Previously unobservable events occurring between insemination and fertilization are the subject of a groundbreaking new article in Science magazine (March 18) by Mollie Manier, John Belote and Scott Pitnick, professors of ...
Cell & Microbiology
Mar 18, 2010
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UCSF researchers have identified an elusive molecular regulator that controls the ability of human sperm to reach and fertilize the egg, a finding that has implications on both treating male infertility and preventing pregnancy.
Cell & Microbiology
Feb 4, 2010
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(PhysOrg.com) -- Female seed beetles are known for their promiscuity, a surprising fact given that the males of the species have dangerously sharp spikes on their sex organs. Now a U of T Mississauga team led by an undergraduate ...
Plants & Animals
Mar 5, 2009
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