Superdaddy Pyros keeps Pyrenees bear numbers up
The number of bears roaming the Pyrenees remained stable at a minimum of 22 last year, thanks largely to the continued virility of Pyros, the undisputed daddy of the colony.
Researchers identify a pheromone in the urine of male tilapia fish that stimulates spawning in females
The exchange of chemical signals between organisms is considered the oldest form of communication. Acting as messenger molecules, pheromones regulate social interactions between conspecifics, for example, ...
Mothers pass on disease clues to offspring
(PhysOrg.com) -- When there is a threat of disease during pregnancy, mothers produce less aggressive sons with more efficient immune systems, researchers at The University of Nottingham have discovered.
New Pest-Resistant Habanero Joins Peck of ARS-Created Peppers
(PhysOrg.com) -- A new red-fruited habanero is the latest pepper with resistance to root-knot nematodes to be released by Agricultural Research Service (ARS) scientists.
Females protect offspring from infanticide by forcing males to compete through sperm
Previous research has shown that infanticide by males is widespread in many mammal species, but most commonly occurs in those species where females live in social groups dominated by one or a few males.
Adolescent male chimps in large community strive to be alphas
(Phys.org)—An Ohio University anthropologist reports the first observation of dominance relationships among adolescent male chimpanzees, which he attributes to the composition of their community.
Right-handers, but not left-handers, are biased to select their dominant hand
The vast majority of humans over 90% prefer to use their right hand for most skilled tasks. For decades, researchers have been trying to understand why this asymmetry exists. Why, with our two cerebral hemispheres ...
Shaken self-confidence? Certain products and activities can fix it
Someone who has momentarily lost confidence in her intelligence is more likely to purchase a pen than a candy bar, according to a new study in the Journal of Consumer Research. The pen helps restore her belief in herself as an ...
Amazon deforestation 'threshold' causes species loss to accelerate
One of the first studies to map the impact of deforestation on biodiversity across entire regions of the Amazon has found a clear 'threshold' for forest cover below which species loss becomes more rapid and ...
Mountain gorilla mamas sidestep having inbred offspring
Some mountain gorilla females linger into adulthood in the group into which they were born. In the process they also remain in the company of their father, who is often their group's dominant male. To curb ...
Fantastic Mrs. Fox -- mother knows best for urban fox families
In urban fox families, mothers determine which cubs get to stay and which must leave while fathers have little say in the matter, new research by biologists at the University of Bristol has found.
Google's Android target of new antitrust complaint (Update)
A group of companies led by Microsoft have called on European authorities to launch an antitrust investigation into Google's dominance of Internet usage on mobile devices.
Vicious queen ants use mob tactics to reach the top
Leptothorax acervorum ants live all over the Northern hemisphere, but their reproductive strategy depends on habitat. Colonies are polygynous (more than one queen) in the forest of Siberia and central Europe, but functionally ...
Monkey-style 'bromance' helps macaques weather life's hard knocks
When it comes to weathering the slings and arrows of outrageous fortune, male macaques get by with a little help from their fellow dudes, according to new research.