Hidden in a bend of the Mississippi River just south of New Orleans, 29 concrete bunkers lie on a grid of dirt and grass roads. Some hold remnants from the past — 40-year-old gas masks and biohazard signs still hang on a wall. Most of them have been abandoned for decades. But inside two of those bunkers, 15 million fish eyes stare at the walls through the glass of their jars. This is the Royal D. Suttkus Fish Collection, the largest collection of preserved fish in the world, and almost no one knows it exists.
Personality tests are hugely popular, though if you ask working psychologists, they’ll tell you the results are little better than astrological signs. But a new study, based on huge sets of personality data representing 1.5 million people, has persuaded one of the staunchest critics of personality tests to conclude that maybe distinct personality types exist, after all.
In a report published Monday in the journal Nature Human Behavior, researchers at Northwestern University in Illinois identify four personality types: reserved, role models, average and self-centered.
The new approach was nothing like the basis for widely used personality tests such as the Myers-Briggs, which spits out a personality type with acronyms like INTJ...or ESFP...
A pear seedling selection named Bradford was cloned by the gazillion to become the ubiquitous street tree of America’s postwar suburban expansion. Then it turned invasive.
Its invasive tendencies became widely noticed by the late 1990s, and by the mid-2000s, it had become a weed in the District and 19 states, from Texas to New York. “While callery pear was introduced with the best of intentions, it now seems that a plague is truly upon us,” botanist Michael Vincent wrote at the time. It has now spread to 29 states.
A battery has been design that runs on maltodextrin, a sugar.
The article is best summed by the closing quote: "Uranus is truly a mystery. Will humans finally take up the task to explore it?"
Come on folks, this is comedy gold right here.
The marine planarian, cuttlefish and Nile perch have one thing in common: in order to propel themselves, they use their fins to generate a continuous wave, which advances along their entire length. With this so-called undulating fin movement, the BionicFinWave also maneuvres through a pipe system (and at) the same time the autonomous underwater robot is able to communicate with the outside world wirelessly and transmit data
And really neat to watch too!
When organizations turn a blind eye to sexual harassment in the workplace, how many people need to take a stand before the behavior is no longer seen as normal?
According to a new paper published to be published tomorrow in Science (link is external), there is a quantifiable answer: roughly 25% of people need to take a stand before large-scale social change occurs. This idea of a social tipping point applies to standards in the workplace, and any type of movement or initiative.
Online, people develop norms about everything from what type of content is acceptable to post on social media, to how civil or uncivil to be in their language. We have recently seen how public attitudes can and do shift on issues like gay marriage, gun laws, or race and gender equality, as well as what beliefs are or aren’t publicly acceptable to voice.
They are ugly, and they are poisonous. And now scientists have discovered that they carry switchblades.
Stonefish, a group that includes many species, have a previously unknown defensive weapon: a “lachrymal saber” in each cheek that can be drawn and retracted as needed.
We now know that all extant living creatures derive from a single common ancestor, called LUCA, the Last Universal Common Ancestor. It's hard to think of a more unifying view of life. All living creatures are linked to a single-celled creature, the root to the complex-branching tree of life. (...) They are able to trace LUCA to a simple prokaryotic creature (a single-celled bacterium with unprotected genetic material) that lived some 3 billion years ago. It must have been a very tough organism, able to survive in very extreme environments.
Even chimpanzees and infants want to punish antisocial behaviour
Living together in communities requires mutual cooperation. To achieve this, we punish others when they are uncooperative. Until now, it has been unclear as to when we develop the impulse to penalise this behaviour—and whether this is an exclusively human feature. Scientists at Max Planck Institute...for Human Cognitive and Brain Sciences and the MPI for Evolutionary Anthropology...in Leipzig discovered that even six-year-old children feel the need to reprimand antisocial behaviour, and that they are willing to take risks and make an effort to be present when the "guilty" one is punished.
Loud orgies of Mexican fish could deafen dolphins, say scientists
A species of Mexican fish amasses in reproductive orgies so loud they can deafen other sea animals, awed scientists have said, calling for preservation of the "spectacle" threatened by overfishing.
An individual spawning Gulf corvina, say the researchers, utters a mating call resembling “a really loud machine gun” with multiple rapid sound pulses.
And when hundreds of thousands of fish get together to spawn once a year “the collective chorus sounds like a crowd cheering at a stadium or perhaps a really loud beehive”, said study co-author Timothy Rowell from the University of San Diego...
Manhattan has two genetically distinguishable groups of rats: the uptown rats and the downtown rats, separated by the geographic barrier that is midtown.
“If you gave us a rat, we could tell whether it came from the West Village or the East Village,” says Combs. “They’re actually unique little rat neighbors.” And the boundaries of rat neighborhoods can fit surprisingly well with human ones.
Like many nearby stars, Ross 128 has been the target of exoplanet searches for decades. The most sensitive search results previously published were from an analysis of HARPS radial velocity (RV) measurements published in 2013 again with Xavier Bonfils (then with Observatoire de Genève) as the lead author. With only a half dozen measurements available at the time, the star’s RV seemed to vary on the order of a meter per second suggesting that the reflex motion of an exoplanet orbiting Ross 128 was being observed although it was impossible to claim a definitive exoplanet detection or characterize its properties with so little data. With this promising start, additional precision RV measurements were made by the HARPS team over the following years.
Researchers observe sleep-like behavior in jellyfish, a brainless organism :
(T)he revelations about jellyfish sleep are important, he said, because they show how basic sleep is. It appears to be a “conserved” behavior, one that arose relatively early in life’s history and has persisted for millions of years. If the behavior is conserved, then perhaps the biological mechanism is too. Understanding why jellyfish, with their simple nerve nets, need sleep could lead scientists to the function of sleep in humans.
Welcome to What Eats? This is a website specifically for kids seeking information about the relationships between predators and their prey. I hope you enjoy it.