Jennifer Nalewicki

An herbivorous dinosaur used its vicious-looking claws to forage for plants near the shores of Cretaceous seas.

Scientists recently linked elevated stress levels in male mice to a compound found in females' urine — and bananas.

A NASA satellite recently spied the underwater eruption of a submerged volcano where sharks make their home.

Scientists recently discovered fossils in Argentina that belong to Thanatosdrakon. The specimens are the largest pterosaurs ever found in South America.

Large torsos helped streamline swimming in giant long-necked extinct marine reptiles that swam Earth's oceans during the Mesozoic.

An extinct arthropod with stilt-like limbs that lived during the Ordovician period was recently described from an exceptional fossil found in Canada.