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Updated: 1 hour 59 min ago

Ancient mice discovered by climate cavers

Mon, 09/24/2018 - 6:50pm
The fossils of two extinct mice species have been discovered in caves in tropical Queensland by scientists tracking environment changes.
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Birds' voiceboxes are odd ducks

Mon, 09/24/2018 - 5:45pm
Birds' voiceboxes are in their chests instead of their throats like mammals and reptiles. Scientists aren't sure how or why birds evolved these unique voiceboxes, but a new study sheds some light on how they came about. Similarities in the windpipes of birds, crocodiles, cats, mice, and salamanders suggest that birds' weird voiceboxes might have arisen from a windpipe reinforcement. From this, scientists can learn about the sounds bird ancestors -- dinosaurs -- made.
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Common weed killer linked to bee deaths

Mon, 09/24/2018 - 5:45pm
Honey bees exposed to glyphosate, the active ingredient in Roundup, lose some of the beneficial bacteria in their guts and are more susceptible to infection and death from harmful bacteria. Scientists believe this is evidence that glyphosate might be contributing to the decline of honey bees and native bees around the world.
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Evidence that addictive behaviors have strong links with ancient retroviral infection

Mon, 09/24/2018 - 5:45pm
New research shows that an ancient retrovirus -- HK2 -- is more frequently found in drug addicts and thus is significantly associated with addiction.
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New earthquake risk model could better inform disaster planning

Mon, 09/24/2018 - 5:45pm
Researchers have developed a new way to model seismic risk, which they hope will better inform disaster risk reduction planning in earthquake-prone areas.
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Wigner crystal -- not Mott insulator -- in 'magic-angle' graphene

Mon, 09/24/2018 - 5:44pm
Recently, scientists created a stir in the field of condensed matter physics when they showed that two sheets of graphene twisted at specific angles display two emergent phases of matter. After a careful review of the experimental data researchers say that the insulating behavior of the ''magic-angle'' graphene is not Mott insulation, but something even more profound -- a Wigner crystal.
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How fruits got their eye-catching colors

Mon, 09/24/2018 - 5:44pm
New evidence supports the idea that plants owe their rainbow of fruit colors to the different animals that eat them. Researchers first had to get past the fact that most animals don't see colors quite the way humans do.
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Doubts and dialogue may alter public perceptions of science

Mon, 09/24/2018 - 5:44pm
Science projects within controversial fields such as synthetic biology could benefit from experimenting with communication settings in which experts share their thoughts and feelings with each other and the public. This allows for a more open and constructive dialogue with the public about research - and may even generate new research ideas, new research suggests.
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Astronomers use Earth's natural history as guide to spot vegetation on new worlds

Mon, 09/24/2018 - 5:44pm
By looking at Earth's full natural history and evolution, astronomers may have found a template for vegetation fingerprints -- borrowing from epochs of changing flora -- to determine the age of habitable exoplanets.
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Violence in pre-Columbian Panama exaggerated, new study shows

Mon, 09/24/2018 - 5:44pm
An oft-cited publication said a pre-Colombian archaeological site in Panama showed signs of extreme violence. A new review of the evidence strongly suggests that the interpretation was wrong.
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'Ground coffee' with soil perks in Brazil

Mon, 09/24/2018 - 4:21pm
Coffee harvesting is often done with heavy machinery that can compact the soil. Additionally, up to 20 percent of coffee berries fall to the ground. Researchers brewed up a solution to restore soil and decrease the loss.
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Exploring links between senses and cognitive health

Mon, 09/24/2018 - 4:09pm
Experts are examining the link between impaired vision, hearing, and cognition.
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Organs are not just bystanders, may be active participants in fighting autoimmune disease

Mon, 09/24/2018 - 4:09pm
Findings from mouse study suggest organs affected by autoimmune disease suppress immune cells using methods similar to those used by cancer cells to evade detection.
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Sex in plants requires thrust

Mon, 09/24/2018 - 4:09pm
In plants, to fertilize the egg, the pollen tube (which is between 1/20 and 1/5 of the width of a human hair) has to navigate through a maze of tissue, no matter what obstacles it encounters. Thanks to the lab-on-a chip technology scientists were able to actually see and measure exactly what was going on within the pollen tube as it grew.
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Even mild physical activity immediately improves memory function

Mon, 09/24/2018 - 3:34pm
Researchers found that even very light workouts can increase the connectivity between parts of the brain responsible for memory formation and storage.
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Desert ants have an amazing odor memory

Mon, 09/24/2018 - 3:34pm
Desert ants can quickly learn many different food odors and remember them for the rest of their lives. Their memory for nest odors seems to differ from their food odor memory: Whereas food odors are learned and kept after a single contact, ants need several trials to memorize nest odors and forget a nest-associated odor quickly after it has been removed from the nest. Hence, ants process food and nest odors differently in their brains.
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A biomarker in the brain's circulation system may be Alzheimer's earliest warning

Mon, 09/24/2018 - 3:34pm
Leaks in the blood-brain barrier can provide early detection for Alzheimer's and diseases.
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Cryo-EM reveals structure of protein responsible for regulating body temperature

Mon, 09/24/2018 - 3:34pm
Scientists have revealed for the first time the atomic-level structure of TRPM2, a protein that may be a promising drug target for conditions such as Alzheimer's disease and bipolar disorder.
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Crowd counting through walls with WiFi

Mon, 09/24/2018 - 3:34pm
Researchers have given the first demonstration of crowd counting through walls using only everyday communication signals such as WiFi. The technique, which requires only a wireless transmitter and receiver outside the area of interest, could have a variety of applications, including smart energy management, retail business planning and security.
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Parasite makes quick exit when researchers remove the handbrake

Mon, 09/24/2018 - 2:40pm
Researchers have discovered a way to halt the invasion of the toxoplasmosis-causing parasite into cells, depriving the parasite of a key factor necessary for its growth. The findings are a key step in getting closer to a vaccine to protect pregnant women from the parasite Toxoplasma gondii, which carries a serious risk of miscarriage or birth defects.
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