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Phys.org / Saber-toothed cats' spinal tumors suggest inbred species struggled to survive
The fossilized spines of saber-toothed cats in the La Brea Tar Pits reveal evidence of an unexpectedly high prevalence of rare spinal nerve tumors, suggesting that the species became inbred just before extinction. These tumors, ...
Phys.org / Portugal's ancient giant bears shrank over thousands of years and humans may be to blame
About 22,000 years ago, a giant brown bear lumbered across what is now Portugal. The creature weighed around 385 kg (about 850 pounds), making it one of the largest of its kind ever found, towering over the Iberian brown ...
Medical Xpress / Newly identified molecule could help regulate sleep
Sleep is known to be essential for survival, as it allows both humans and other animals to rest, while the brain consolidates memories and clears out metabolic waste products. For many people worldwide, however, falling asleep ...
Phys.org / Engineered enzyme erases a stubborn mark of aging by up to 70% in human tissue samples
A biotech company called Revel Pharmaceuticals is looking into ways to reverse aging, and the company's science team, along with researchers from the company Calico and the University of Colorado, may be a step closer to ...
Medical Xpress / Omalizumab allows children with multiple food allergies eat trigger foods safely
About a third of children with multiple food allergies gained the ability to safely eat full servings of foods that trigger their allergies in a new Stanford Medicine-led clinical trial. The results were published in JAMA ...
Phys.org / Modern forensics uncovers new clues about Inca sacrifice victims' last days
Human sacrifice was deeply ingrained in Inca civilization. Children and young people were selected for sacrifice to appease the gods and sacred mountain spirits. Being chosen was considered a great honor for both the victims ...
Phys.org / How changing environments can preserve an ancient microbial survival strategy
A research group led by Tetsuhiro Hatakeyama from the Earth-Life Science Institute (ELSI) at the Institute of Science Tokyo has revealed how a seemingly self-destructive survival strategy could persist in yeast for hundreds ...
Medical Xpress / Experimental plague vaccine strategy protects mice with missing key immune defenses
The plague has killed more people than World War II. The bacterium Yersinia pestis (Yp), which causes plague, has triggered three major pandemics throughout history, leaving behind a casualty toll of more than 200 million ...
Phys.org / Christmas in July: Engineers capture gigapixel 3D video of snowflakes
For the first time, researchers can witness nanometer-scale thickness changes across a melting snowflake with a compact, lensless chip that captures gigapixel video at 30 frames per second across centimeter-scale fields.
Phys.org / JWST captures rare glimpse of early black hole growing inside network of young galaxies
Astronomers using the James Webb Space Telescope have captured one of the clearest views yet of how an early supermassive black hole may grow within a network of young galaxies. The compact active galaxy, seen just a billion ...
Medical Xpress / Stretchable antenna keeps wearable health sensors in tune with human health
Wearable health monitors are designed to move with the body. But for many devices, movement creates a problem: The more a person bends, stretches, reaches or runs, the harder it can be for the device to keep a stable wireless ...
Phys.org / Research cautions that sometimes working together can actually spur inequality
Encouraging people to contribute to a common good can have a surprising drawback: a risk that rewards become concentrated among a smaller group, putting the rest at a disadvantage. Put more simply, "equality and cooperation ...
