Researchers at the Francis Crick Institute and Heidelberg University in Germany have shown that sex differences in animals vary dramatically across species, organs and developmental stages, and evolve quickly at the gene ...
Evolution
Nov 2, 2023
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(AP) -- A new taste for eating elephant meat - everything from trunks to sex organs - has emerged in Thailand and could pose a new threat to the survival of the species.
Other
Jan 27, 2012
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In a study published online today in Nature, researchers at Albert Einstein College of Medicine describe the first complete wiring diagram of the nervous system of an animal, the roundworm Caenorhabditis elegans, used by ...
Biotechnology
Jul 3, 2019
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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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Sexually naïve male mice respond differently to the chemical signals emitted by newborn pups than males that have mated and lived with pregnant females, according to a study published March 20 in The Journal of Neuroscience. ...
Plants & Animals
Mar 19, 2013
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It's been more than fifty years since scientists discovered that the single-celled organism Tetrahymena thermophila has seven sexes. But in all that time, they've never known how each cell's sex, or "mating type," is determined; ...
Cell & Microbiology
Mar 26, 2013
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Young virgin female hide beetles (Dermestes maculatus) are attracted to cadavers by a combination of cadaver odour and male sex pheromones, finds a new study published in BioMed Central's open access journal Frontiers in ...
Plants & Animals
Aug 13, 2012
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B chromosomes have a functional effect on sex determination in a species of cichlid fishes from Lake Victoria, according to a study by Japanese researchers to be published in open-access journal PLoS Genetics on August 18th, ...
Biotechnology
Aug 18, 2011
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A trio of researchers at Kiel University in Germany has discovered how the male thistle tortoise beetle manages to penetrate the coiled duct inside the female reproductive organ without buckling his flagellum. In their paper ...
(Phys.org)—A research team made up of members from China, the U.S. and France has found new evidence that overturns the notion that a species of ancient insects known as strashilids were parasites. Instead, as the team ...
