66 million years ago, the fearsome, meat-eating dinosaur Majungasaurus crenatissimus prowled the semi-arid lowlands of Madagascar. Its powerful jaws bristled with bladelike teeth, and its strong legs terminated in formidable claws. Not even its own kin were safe, for given the chance, Majungasaurus was known to engage in cannibalism. Now, a new study published in the Journal of Vertebrate Paleontology shows that there was one part of its dreadful form that was not to be feared: its arms. Leer más.

Frogs may once again be sending us a warning, this time about a potential threat likely in your kitchen and bathrooms. Take a moment to think about the antibacterial personal care products you use on a daily basis. Triclosan is an ingredient found in products marketed as antibacterial and antimicrobial such as hand soap, toothpaste, deodorant, cutting boards, and even yoga mats and toys, and it could pose a health risk. Leer más.