Male St. Andrew's Cross spiders sniff web pheromones to determine suitability of female mates
First close up images of Chalara fraxinea growing on the leaf stem of infected ash
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.
Researcher reveals new way to safeguard DNA samples
(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.
Study shows reproductive effects of pesticide exposure span generations
(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 ...
Researchers discover how model organism Tetrahymena plays roulette with seven sexes
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 "matin ...
Sexually naive male mice, fathers respond differently to pups
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 ...
Researchers find Jurassic strashilids not a parasite after all
Scientists identify key event for sex determination
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, ...
NY Times in spotlight as ex-BBC chief takes reins
Former BBC chief Mark Thompson assumed his new role at The York Times Co. Monday amid questions about whether the crisis engulfing the British broadcaster would spill over to the US news organization.
The scent of love: Decomposition and male sex pheromones
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 journa ...
Orb web spiders found to be better guards after sex
Male spiders of one species lose their genitals after sex to increase sperm count in females
New taste for Thai elephant meat
(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.
Evolution keeps sex determination flexible
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 ...