(Phys.org) —A trio of researchers, two with the University of Hamburg in Germany and a third with Macquarie University in Australia has discovered that male St. Andrew's Cross spiders sniff the webs of female spiders to ...
There are many old wives' tales about what determines a baby's sex, yet it is the tight controls at the gene level that determine an organism's sex in most species. Researchers at Michigan State University have found that ...
Evolution
Sep 12, 2011
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(Phys.org) —North Carolina State University researchers studying aquatic organisms called Daphnia have found that exposure to a chemical pesticide has impacts that span multiple generations – causing the so-called "water ...
Ecology
Apr 22, 2013
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The images were obtained using cryo scanning electron microscopy, where the sample is plunged into liquid nitrogen to freeze it and imaged using the electron microscope.
Cell & Microbiology
May 14, 2013
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Scientists at the Institute of Molecular Biology (IMB) in Mainz have identified a protein essential for initiating the development of male sex organs. Loss of the gene Gadd45g results in complete sex reversal of male mice, ...
Cell & Microbiology
Nov 27, 2012
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The Earth Biogenome Project, a global consortium that aims to sequence the genomes of all complex life on earth (some 1.8 million described species) in ten years, is ramping up.
Biotechnology
Jan 19, 2022
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The female of a sex-role reversed cave insect species Neotrogla has evolved a switching valve to receive more semen during mating, when a penis-like structure in the female anchors in the male "vagina."
Plants & Animals
Oct 17, 2018
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Larval nutrition plays a role in determining the sexual characteristics of Japanese rice fish, also called medaka (Oryzias latipes), report a team of researchers led by Nagoya University. The findings, published in the journal ...
Plants & Animals
May 21, 2020
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During the past decade, law enforcement agencies across the country have confronted the alarming trend of sex trafficking. The crimes often take place in hotel rooms, with perpetrators widely sharing photos of the victims ...
Other
Sep 7, 2016
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5
(Phys.org) —DNA evidence is invisible and remarkably easy to transfer, making it possible for a sample to be spilled or even planted on a piece of evidence.
Biotechnology
Apr 30, 2013
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