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environmental-oxygen-triggers-loss-of-webbed-digits

Environmental oxygen triggers loss of webbed digits

African clawed frog (stock image). Credit: © Nathan / Adobe Stock Free fingers have many obvious advantages on land, such as in locomotion and grasping, while webbed fingers are typical of aquatic or gliding animals. But both amphibians and amniotes -- which include mammals, reptiles, and birds -- can have webbed digits. In new research…
hidden-brain-signals-behind-working-memory

Hidden brain signals behind working memory

Rats in maze (stock image). Credit: © Artem Marfin / Adobe Stock Making a specific type of brain pattern last longer improves short-term memory in rats, a new study finds. Published online by the journal Science on June 14, the study addressed "working memory," the temporary activation of brain cells that happens as we tour…
astronomers-determine-mass-of-small-black-hole-at-center-of-nearby-galaxy

Astronomers determine mass of small black hole at center of nearby galaxy

Black hole illustration (stock image). Credit: © Stanislaw Blachowicz / Adobe Stock If astronomers want to learn about how supermassive black holes form, they have to start small -- really small, astronomically speaking. In fact, a team including University of Michigan astronomer Elena Gallo has discovered that a black hole at the center of a…
sensing-food-textures-is-a-matter-of-pressure

Sensing food textures is a matter of pressure

Eating chocolate (stock image). Credit: © prudkov / Adobe Stock Food's texture affects whether it is eaten, liked or rejected, according to Penn State researchers, who say some people are better at detecting even minor differences in consistency because their tongues can perceive particle sizes. That is the key finding of a study conducted in…
once-thought-to-be-asexual-single-celled-parasites-caught-in-the-act

Once thought to be asexual, single-celled parasites caught in the act

Leishmania illustration (stock image). Credit: © Kateryna_Kon / Adobe Stock Even single-celled organisms desire partners every now and then. Leishmania -- single-celled parasites that cause infections of the skin and internal organs -- have long been known to multiply asexually, like bacteria. But occasionally, researchers have found hybrid parasites that carry genetic material from more…
direct-from-distant-planet-spectral-clues-to-puzzling-paradox

Direct from distant planet: Spectral clues to puzzling paradox

Protoplanetary disk (stock image). Credit: © Mopic / Adobe Stock CI Tau b is a paradoxical planet, but new research about its mass, brightness and the carbon monoxide in its atmosphere is starting to answer questions about how a planet so large could have formed around a star that's only 2 million years old. At…
rheumatoid-arthritic-pain-could-be-caused-by-antibodies

Rheumatoid arthritic pain could be caused by antibodies

Hand pain concept (stock image). Credit: © yodiyim / Adobe Stock Antibodies that exist in the joints before the onset of rheumatoid arthritis can cause pain even in the absence of arthritis, researchers from Karolinska Institutet in Sweden report. The researchers believe that the finding, which is published in the Journal of Experimental Medicine, can…

Hidden brain signals behind working memory

Rats in maze (stock image). Credit: © Artem Marfin / Adobe Stock Making a specific type of brain pattern last longer improves short-term memory in rats, a new study finds. Published online by the journal Science on June 14, the study addressed "working memory," the temporary activation of brain cells that happens as we tour…
what-drives-yellowstone8217s-massive-elk-migrations

What drives Yellowstone’s massive elk migrations?

Elk at Yellowstone (stock image). Credit: © Wanderers Passion / Adobe Stock Every spring, tens of thousands of elk follow a wave of green growth up onto the high plateaus in and around Yellowstone and Grand Teton national parks, where they spend the summer calving and fattening on fresh grass. And every fall, the massive…
saturn8217s-moon-mimas-a-8216snowplough8217-in-the-planet8217s-rings

Saturn’s moon Mimas: A ‘snowplough’ in the planet’s rings

Saturn illustration (stock image). Credit: © Dimitar Marinov / Adobe Stock The Solar System's second largest planet both in mass and size, Saturn is best known for its rings. These are divided by a wide band, the Cassini Division, whose formation was poorly understood until very recently. Now, researchers from the CNRS, the Paris Observatory…
uncovering-the-hidden-history-of-a-giant-asteroid

Uncovering the hidden history of a giant asteroid

Asteroid (stock image). Credit: © mode_list / Adobe Stock A massive 'hit-and-run' collision profoundly impacted the evolutionary history of Vesta, the brightest asteroid visible from Earth. This finding, by a team of researchers from Tokyo Institute of Technology, Japan's National Institute of Polar Research and ETH Zurich, Switzerland, deepens our understanding of protoplanet formation more…

Once thought to be asexual, single-celled parasites caught in the act

Leishmania illustration (stock image). Credit: © Kateryna_Kon / Adobe Stock Even single-celled organisms desire partners every now and then. Leishmania -- single-celled parasites that cause infections of the skin and internal organs -- have long been known to multiply asexually, like bacteria. But occasionally, researchers have found hybrid parasites that carry genetic material from more…
the-sun-may-have-a-dual-personality-simulations-suggest

The sun may have a dual personality, simulations suggest

Sunspots (stock image). Credit: © lukszczepanski / Adobe Stock Researchers at CU Boulder have discovered hints that humanity's favorite star may have a dual personality, with intriguing discrepancies in its magnetic fields that could hold clues to the sun's own "internal clock." Physicists Loren Matilsky and Juri Toomre developed a computer simulation of the sun's…
language-savvy-parents-improve-their-children8217s-reading-development-study-shows

Language-savvy parents improve their children’s reading development, study shows

Reading with child (stock image). Credit: © fizkes / Adobe Stock Some languages -- like English -- are tricky to pick up easily. Young children learning to read and write English often need to identify patterns in words to be able to read and spell them. For example, knowing the "Magic E" syllable pattern can…
small-cluster-of-neurons-is-off-on-switch-for-mouse-songs

Small cluster of neurons is off-on switch for mouse songs

Lab mouse (stock image). Credit: © efmukel / Adobe Stock Researchers at Duke University have isolated a cluster of neurons in a mouse's brain that are crucial to making the squeaky, ultrasonic 'songs' a male mouse produces when courting a potential mate. In fact, they now understand these neurons well enough to be able to…

The sun may have a dual personality, simulations suggest

Sunspots (stock image). Credit: © lukszczepanski / Adobe Stock Researchers at CU Boulder have discovered hints that humanity's favorite star may have a dual personality, with intriguing discrepancies in its magnetic fields that could hold clues to the sun's own "internal clock." Physicists Loren Matilsky and Juri Toomre developed a computer simulation of the sun's…
it8217s-not-easy-being-green

It’s not easy being green

Arabidopsis (stock image). Credit: © Vasiliy Koval / Adobe Stock Despite how essential plants are for life on Earth, little is known about how parts of plant cells orchestrate growth and greening. By creating mutant plants, UC Riverside researchers have uncovered a cellular communication pathway sought by scientists for decades. Both plants and humans have…
virus-genes-help-determine-if-pea-aphids-get-their-wings

Virus genes help determine if pea aphids get their wings

Aphids on a leaf (stock image). Credit: © corlaffra / Adobe Stock Many of an organism's traits are influenced by cues from the organism's environment. These features are known as phenotypically plastic traits and are important in allowing an organism to cope with unpredictable environments. But what are the genetic mechanisms underlying these traits? Jennifer…
a-shady-spot-may-protect-species-against-rapid-climate-warming

A shady spot may protect species against rapid climate warming

Southern rock agama lizard (stock image). Credit: © hpbfotos / Adobe Stock Finding a shady refuge to cool off on a hot day could be more than a lifesaver in a warming world. It might save several species that would otherwise go extinct due to global warming, according to an analysis by ecologists at a…

What drives Yellowstone’s massive elk migrations?

Elk at Yellowstone (stock image). Credit: © Wanderers Passion / Adobe Stock Every spring, tens of thousands of elk follow a wave of green growth up onto the high plateaus in and around Yellowstone and Grand Teton national parks, where they spend the summer calving and fattening on fresh grass. And every fall, the massive…

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