The largest study of CRISPR action to date has developed a method to predict the exact mutations CRISPR-Cas9 gene editing can introduce to a cell. Researchers edited 40,000 different pieces of DNA and..
Losing just a couple hours of sleep at night makes you angrier, especially in frustrating situations, according to new research. While the results may seem intuitive, the study is one of the first to ..
Pennsylvania's energy history is rich with the quantities of fossil fuels that it has produced, but is also rife with the environmental legacies of coal mining and, more recently, hydrofracturing..
A new project shows that animal footprints contain enough DNA for species identification. The study extracted DNA from snow samples collected within animal tracks and applied newly developed molecular..
The microorganisms that cause malaria, leishmaniasis and a variety of other illnesses today can be traced back at least to the time of dinosaurs, a study of amber-preserved blood-sucking insects and t..
Biologists have discovered that oxidative damage by free radicals produces an unusual pileup of short snippets of RNA in some neurons. This RNA buildup may predispose cells to neurodegenerative diseas..
For most, the time spent staring at screens — on computers, phones, iPads — constitutes many hours and can often disrupt sleep. Now, researchers have pinpointed how certain cells in the eye process ..
A researcher for the first time has modeled how microplastic fibers move through the environment. The work could someday help communities better understand and reduce plastics pollution, which is a gr..
Water fleas of the genus Daphnia detect via chemical substances if their predators, namely Chaoborus larvae, are hunting in their vicinity. If so, they generate defenses that make them more difficult ..
Bacteria can become insensitive to antibiotics by picking up resistance genes from the environment. Unfortunately for patients, the stress response induced by antibiotics activates competence, the abi..