Paleontologists in Uruguay have identified a new species of aeolosaurine titanosaur from a pair of remarkably well-preserved tailbones unearthed in the...
In an analysis of 390 traditionally cultivated cacao trees representing traditional Amazonian varieties, researchers identified four previously unknown...
New research suggests that the first widespread human cultures in the Americas were not opportunistic foragers who ate whatever they could find, but specialized...
Paleontologists working in Brazil have identified a previously unknown species of archosauriform that lived about 240 million years ago and may belong...
A 113-million-year-old pterosaur fossil from northeastern Brazil has yielded rare evidence of soft tissues, organic molecules and chemical traces of a...
Hundreds of camera-trap records from Bolivia and Peru suggest the short-eared dog (Atelocynus microtis), one of the world’s least-known canids and one...
Paleontologists have identified a new species of meiolaniform turtle from northern Patagonia, Argentina, that lived during the Maastrichtian age, just...
Paleontologists in Argentina have identified a previously unknown species of unenlagiid dinosaur that stalked freshwater wetlands during the Late Cretaceous...
Fossils unearthed on a remote Argentine ranch belong to a new genus and species of macronarian sauropod dinosaur, according to an international team of...
A landmark study of several butterfly lineages and a day-flying moth in South America shows that convergent evolution — when unrelated species arrive...
A comprehensive genome-wide analysis of Amazonian two-toed sloths (genus Choloepus) suggests the animals are more genetically diverse than once believed,...
Paleontologists in Brazil have identified a new genus and species of hyperodapedontine rhynchosaur — an extinct lineage of beaked, herbivorous reptiles...
The Galápagos lava heron, a small heron that stalks the lava-strewn shores of the Galápagos Islands, Ecuador, may finally have secured its place as a...
In the cold, wave-battered channels off southern Chile, scientists have identified what they say is a new species of the steamer duck genus Tachyeres,...
Fossil jaws of the ancient monkey species Stirtonia victoriae from the La Victoria Formation in Colombia suggest that a shift toward leaf-eating allowed...
A new genus and species of archaic stem tetrapod from the Permian period has been identified from fossil jawbones found in Brazil. Named Tanyka amnicola,...
An antbird long thought to be a single widespread species across the Amazon rainforest is, in fact, several different ones. Among them are two newly-described...
A remarkably complete skeleton of the alvarezsauroid dinosaur species Alnashetri cerropoliciensis from Patagonia, Argentina, as well as two alvarezsauroid...
