Articles by Paul Arnold
Phys.org / Queen bees survive winter flooding by breathing underwater
Hibernation is a risky endeavor for many animals, as they can be taken away by the elements or predators. For several months of the year, queen bumblebees enter a dormant state underground called diapause. While this keeps ...
Phys.org / Japanese scientists discover how falling cats almost always make perfect landings
When cats fall, they usually land on their feet. This uncanny ability to right themselves before hitting the ground has long puzzled scientists. Now, a team from Yamaguchi University in Japan has the answer, and it's all ...
Phys.org / Glacial lakes in Alaska are expanding rapidly and could quadruple in size
Alaska's glacial lakes are growing faster than in previous decades. They expanded by more than 150 square kilometers between 2018 and 2024, and could eventually grow to more than four times their current size as glaciers ...
Phys.org / How a shift in the Gulf Stream could signal the collapse of a major ocean current system
Changes in the Gulf Stream, a strong ocean current in the Atlantic, could serve as an early warning of the imminent collapse of the Atlantic Meridional Overturning Circulation (AMOC). The AMOC is a massive system of ocean ...
Phys.org / Camera captures first video of a red fox attacking a wolf pup
We are used to seeing a strict order in nature, with apex predators at the top feeding on those lower down the pecking order. But in video footage from a nature reserve in Italy, we see a red fox turning the tables, attacking ...
Medical Xpress / Cheek cells may provide clues to schizophrenia risk
A simple cheek swab could one day provide a quick and noninvasive diagnostic test for schizophrenia. A new study published in Science Advances has identified higher levels of two biological markers in the cheek swabs of patients ...
Phys.org / Many scientists now use AI but fail to disclose it, study finds
When scientists employ generative AI tools like ChatGPT to help with tasks such as editing and translation for their academic writing, many journals now ask them to disclose this assistance. The rules are intended to maintain ...
Phys.org / New species of ancient mollusk found in South Korean waters
Scientists have discovered a new species of chiton, an ancient marine mollusk that has remained virtually unchanged for the last 300 million years. Chitons have an elongated oval shape with a shell composed of eight interlocking ...
Phys.org / Scientists create a hexagonal diamond that could be even harder than the real thing
To misquote a famous song, "Diamonds are industry's best friend." Cubic diamond is the hardest mineral on Earth and is used in everything from precision cutting tools to high-performance semiconductors as well as expensive ...
Tech Xplore / How AI could end online anonymity
The internet is rife with anonymous accounts as users adopt pseudonyms, sometimes for genuine reasons like speaking freely, and other times for nefarious ones. But this era of online privacy could be coming to a close. In ...
Phys.org / Cockroaches that eat each other's wings become exclusive partners
Scientists have discovered that, far from being solitary insects, some cockroaches appear to form an exclusive bond with a partner. And how do they get this relationship off the ground? By eating each other's wings.
Tech Xplore / Bioinspired robot eye adjusts its pupil to handle harsh lighting
Robot vision could soon get a boost thanks to the development of a bioinspired eye that can automatically adjust its pupil size in response to changing light levels. Robots, self-driving cars and drones often struggle with ...
Phys.org / Left-handed people may have a psychological edge in competition
Left-handers are more competitive than right-handers, according to a new study published in the journal Scientific Reports. The findings may help explain why left-handedness has persisted throughout evolution despite the ...
Tech Xplore / AI often escalates to nuclear action in war games
There are some things perhaps we might not want artificial intelligence to handle, at least for the time being. When leading chatbots were put through war-game simulations, they opted for nuclear signaling or escalation in ...
Phys.org / Ancient Greek priestesses may have turned ergot fungus into a psychedelic brew during the Eleusinian Mysteries
The Eleusinian Mysteries were secret religious rites in ancient Greece honoring the goddess Demeter and her daughter Persephone, and aimed to remove the fear of death. The ceremonies included days of fasting, rituals and ...
