Male wasps use genitalia to sting their predators
Female bees and wasps use modified ovipositors, formerly used in egg laying, to sting their attackers, including people. Now, a study in Current Biology on December 19 shows that male mason wasps use sharp genital spines to attack and sting predatory.....»»
Paleontologists discover new predatory dinosaur with a distinctive "eyebrow"
Theropod dinosaurs are one of the most important large groups of dinosaurs, including well-known predators, such as Tyrannosaurus and Allosaurus, as well as modern birds. A variety of theropods are known from the Mesozoic Era, the age of the dinosaur.....»»
Sponges" symbiosis with bacteria helps them store toxic molybdenum to keep predators away, study shows
A new study at Tel Aviv University found that sponges in the Gulf of Eilat have developed an original way to keep predators away. The researchers found that the sponges contain an unprecedented concentration of the highly toxic mineral molybdenum (Mo.....»»
How "winner and loser effects" impact social rank in animals—and humans
Research has shown that in many animals, the winners of a fight are more likely to win subsequent contests, while the losers tend to lose their following fights. In experiments where male stickleback fish were randomly introduced to another fish, 65%.....»»
Some solitary mammals have surprisingly social lives: What one researcher has learned from a tiny south African rodent
We probably all know someone who lives a solitary life. But not everyone realizes that there are solitary individuals in the animal kingdom, too. Examples of solitary species are some shrews, and large predators, such as black bears (Ursus americanus.....»»
Findings reveal eurypterids evolved giant size independently at least nine times
Sea scorpions, ancient predators that patrolled Earth's marine and freshwater habitats hundreds of millions of years ago, are the focus of a sizable scientific mystery......»»
Unlocking the potential of rapeseed: CRISPR edits for hybrid efficiency
Hybrid production in rapeseed faces several significant challenges, primarily due to the complexities and limitations of current male sterility systems. Traditional methods often involve intricate management processes and are highly sensitive to envi.....»»
Male and female lions socialize differently throughout their lives, study reveals
New research from the University of Oxford on wild lions has revealed that males and females experience vastly different changes to their social network throughout their lives, and that this may shape their survival......»»
Study highlights missed opportunities to engage male perpetrators of violence against women
In the midst of the national crisis of men's violence against women in Australia, a new Monash University report reveals new evidence on the urgent need to improve men's engagement in behavior change programs......»»
Southport attacks: What we know about knife crime in the UK and how to solve it
The knife attack on a dance class of children in Southport has left the country horrified. We do not yet know much about what happened, but a male aged 17 has been charged with the murder of three girls and 10 counts of attempted murder......»»
Ancient Antarctic microorganisms are aggressive predators
In Antarctica there is a small lake, called Deep Lake, that is so salty it remains ice-free all year round despite temperatures as low as -20°C in winter. Archaea, a unique type of single-celled microorganism, thrive in this bitterly cold environmen.....»»
Ghosts of species past: Shedding new light on the demise of NZ"s moa can help other flightless birds
New Zealand was once home to giant flightless birds called moa. They had grown accustomed to life without predators. So the arrival of humans in the mid-13th century presented a massive—and ultimately insurmountable—challenge to their existence......»»
In study of police, female officers perceived more danger, were more suspicious of civilians than male colleagues
How do female police officers, who are often excluded from the traditional masculine occupational culture of policing, feel about their working environment and how the public perceives them? A new study has used survey data from officers in a large,.....»»
When searching for light and a mate in the deep, dark sea, male dragonfish grow larger eyes, scientists discover
A small but ferocious predator, the male dragonfish will apparently do anything for love. Or at least to find a mate. A study by researchers at Boston College found that the eyes of the male dragonfish grow larger for mate-seeking purposes, making th.....»»
Fruit fly post-mating behavior controlled by male-derived peptide via command neurons, finds study
Scientists have succeeded in pinpointing the neurons within a female fruit fly's brain that respond to signals from the male during mating......»»
High school girls" club offers support for peers taking male-dominated automotive classes
The Girls Get It Done Club is aimed at providing support for girls interested in being auto technicians but who don't feel all that comfortable — or confident — in the male-dominated classes they attend at Sabin-Schellenberg Professional Technica.....»»
One more way to die: Tremors when Vesuvius erupted collapsed shelter walls
Two male skeletons showed signs of severe fracture and trauma injuries. Enlarge / Two skeletons found in the ruins of a Pompeii building may have been crushed by wall collapses triggered by earthquakes. (credit: Pompeii Archaeolo.....»»
Ladybugs: Understanding the beneficial predators among us
Lady beetles, also known as ladybugs, are distinct, varied and abundant, with approximately 500 species in North America and 6,000 worldwide. Their oval, dome-shaped bodies can be colorful and decorative, but the "lady" designation has nothing to do.....»»
Researchers listen to the hearts of bats in flight
Researchers from Konstanz have measured the heart rate of bats over several days in the wild, including complete flights—the first time this has been done for a bat species. To record the heart rate of male common noctule bats during flight, the sc.....»»
A pregnant stingray with no male companion now has a "reproductive disease," aquarium says
A North Carolina aquarium that said it had a pregnant stingray with no male companion now says the fish has a rare reproductive disease......»»
Study reveals maintenance of male-related genes after loss of males in stick insects
Traits are often lost during evolution, either because they are no longer beneficial or because they are too costly to maintain. When this happens, it is generally believed that the genes underlying the trait will eventually degrade as well, making i.....»»