Paleontologists have found a fossilized jaw fragment and three isolated teeth from a new, relatively large (by Late Cretaceous standards) metatherian species...
Paleontologists have identified a new genus and species of sauropod dinosaur from a semi-articulated specimen found in the 1990s in northern Wyoming, the...
Paleontologists have described three new enantiornithine birds from the Cretaceous Hell Creek Formation, two of which represent new avisaurid species....
Paleontologists have announced the discovery of a new species in the tyrannosaurid dinosaur genus Labocania, based on a partial skeleton found in Coahuila,...
Amaga pseudobama has been found in three locations in North Carolina and in some infested plants from Georgia.
Amaga pseudobama, living specimen collected...
Syntretus perlmani infects the adult stage of fruit flies in the genus Drosophila, including one of the most deeply studied model organisms in biology,...
Paleontologists from the University of Bath and elsewhere have described a new genus and species of kritosaurin hadrosaurid dinosaur from a partial skull...
Historical and ethnographic sources depict use of portable braced shaft weapons, or pikes, in megafauna hunting and defense during Late Holocene millennia...
Multiple studies have demonstrated that European colonization of the Americas led to the extinction of nearly all North American dog mitochondrial lineages...
Scientists from James Madison University have performed a multi-variable investigation of thunderstorm environments in two distinct geographic regions:...
Characterized by a finless torpedo-shaped body, Nuucichthys rhynchocephalus is the first soft-bodied vertebrate known from the American Great Basin.
Nuucichthys...
According to new research, giant plumes of Saharan dust, transported across the Atlantic Ocean by trade winds, can suppress hurricane formation over the...
Paleontologists have described a new species of snake from the Early Oligocene of Wyoming based on four nearly complete and articulated specimens found...
Paleontologists in the United States have described a new genus and species of extinct crocodile relative based on a partially articulated skeleton found...
Paleontologists have identified a new genus and species of centrosaurine dinosaur from the fossilized remains found in the Judith River Formation in the...
Paleontologists from the University of Texas at Austin and elsewhere have discovered a fragmentary jaw of the scimitar-toothed cat Homotherium on McFaddin...
New World porcupines originated in South America and dispersed into North America between 4 and 3 million years ago. Prehensile-tailed porcupines today...
Paleontologists have unearthed the fossilized remains of two new small-bodied pachycephalosaurines: one in the Dinosaur Park Formation of Alberta and the...
Black-capped chickadees (Poecile atricapillus), small North American passerine birds that live in deciduous and mixed forests, have extraordinary memories...
