Science & Medicine

Chicago -- Two paleontologists said at least one species of crocodiles that existed nearly 100 million years ago in Africa actually fed on dinosaurs.

Baltimore -- U.S. researchers say keeping a cart of supplies and medicines handy reduces the need for emergency airway surgery for hard-to-intubate patients.

Rochester -- U.S. scientists have organized a research project to study dangers presented by Rwanda's Lake Kivu, which contains high levels of carbon dioxide and methane.

Boston -- U.S. medical researchers say they have determined why some combination drug therapies do not work.

New York -- U.S. scientists say they've developed the world's first brain cancer treatment that involves directly spraying a chemotherapy agent onto the tumor.

Champaign, Ill. -- A University of Illinois study of pedestrian safety has found using a cell phone while walking can endanger one's health.

Madison, Wis. -- A University of Wisconsin-Madison study suggests the world's largest freshwater lake by surface area, Lake Superior, is becoming warmer.

Saskatoon, Saskatchewan -- A University of Saskatchewan scientist said a severe bout of global cooling deemed the "Big Freeze" began in Canada nearly 12,800 years ago.

Dhaka, Bangladesh -- Researchers at the Massachusetts Institute of Technology said they may have discovered what caused arsenic to appear in drinking water in Bangladesh.