When predators lurk nearby, male Bahamas mosquitofish (Gambusia hubbsi) change mating strategies, rejecting elaborate courting rituals for more frequent and sometimes forceful encounters with females.
But as a recent North Carolina State University study shows, mating strategies aren’t the only things changing for G. hubbsi when predators abound. The shape and size of the male fish’s genitalia are also linked to the presence or absence of predators. (more…)
Turning fossil fuel into energy is easy: You just burn it. And live with the carbon dioxide byproduct. What if we could reverse the process and turn water and carbon dioxide back into fuel?
A dream solution, but it may seem like trying to put the genie back in the bottle. (more…)
At a cosmologically crisp one degree Kelvin (minus 458 degrees Fahrenheit), the Boomerang nebula is the coldest known object in the universe — colder, in fact, than the faint afterglow of the Big Bang, the explosive event that created the cosmos.
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) telescope in Chile have taken a new look at this object to learn more about its frigid properties and to determine its true shape, which has an eerily ghost-like appearance. (more…)
UCLA psychologists have used brain-imaging techniques to study what happens to the human brain when it slips into unconsciousness. Their research, published Oct. 17 in the online journal PLOS Computational Biology, is an initial step toward developing a scientific definition of consciousness.
“In terms of brain function, the difference between being conscious and unconscious is a bit like the difference between driving from Los Angeles to New York in a straight line versus having to cover the same route hopping on and off several buses that force you to take a ‘zig-zag’ route and stop in several places,” said lead study author Martin Monti, an assistant professor of psychology and neurosurgery at UCLA. (more…)
For scientists studying marine mammals in the wild, data-logging tags are invaluable tools that allow them to observe animals’ movements and behaviors that are otherwise hidden beneath the waves much of the time. The tags, which temporarily attach to animals using suction, record sounds and gather information about animals’ pitch, speed, and depth. But what effect do the tags have on the animals?
Researchers from Woods Hole Oceanographic Institution (WHOI) and Texas A&M University-Corpus Christi (TAMUCC) are working with dolphins and their trainers at Dolphin Quest at The Kahala Hotel and Resort in Oahu to answer that question, among others. (more…)
Richard Ruiz, who heads the UA Department of Mexican American Studies, has turned to crossword puzzles to teach students about the implicit meaning of language.
Consider this crossword puzzle clue: The capital of Massachusetts? And know that while the answer contains six letters, it’s not Boston.
The Calaveras County Jumping Frog Jubilee has entered the scientific record via a new paper in the Journal of Experimental Biology. Experienced bullfrog ‘jockeys’ at the event routinely get their frogs to jump much farther than researchers had ever measured in the lab. How? Decades of refined technique, uncommonly motivated humans and herps, and good old-fashioned large sample size.
PROVIDENCE, R.I. [Brown University] — One day, amid his decades-long study of how animals move, including how frogs jump, Brown University biologist Thomas Roberts found himself and colleague Richard Marsh puzzling over the Guinness Book of World Records. A bullfrog named Rosie the Ribiter reportedly had jumped more than 2.1 meters in a single hop at the Calaveras County Jumping Frog Jubilee in 1986, but scientific studies had never reported a bullfrog jump beyond 1.3 meters. (more…)
UD researcher gets to the root of why women leave STEM fields
Call it a self-fulfilling prophecy.
Women who are the most invested in science, technology, engineering and mathematics fields (STEM) are also the ones who are most likely to leave them.
Part of it may have to do with a well-studied phenomenon called stereotype threat. But the University of Delaware’s Chad Forbes is trying to help change that. (more…)
