An experiment revealed that chomping on slightly tougher material requires markedly more energy. Spending less time on mastication may go hand in hand with human evolution.
A new study found that the dangerous pairing of disasters may become more common in the American West as rains trigger runaway surges of mud and debris in areas damaged by wildfire.
In an effort to cut down on plastic waste, packaging is taking on different forms that can be more easily recycled or that do away with plastic altogether.