Researchers at the University of Pennsylvania are working on an mRNA experimental bird flu vaccine Juan Peña
An 11-year-old girl finds the bone of what could be the largest known marine reptile Rosana Rábago Sainz
Boston hospital transplants genetically modified pig kidney into a human for the first time in history Santiago Ospital
Indian space agency unveils the first image from its camera at the moon's south pole Rosana Rábago Sainz
Cocaine sharks? Experts claim that sharks are ingesting drugs dumped by drug traffickers off the coast of Florida Rosana Rábago Sainz