The new fossil material belonging to Anachlysictis gracilis, including an almost complete specimen consisting of a nicely preserved skull and postcranial...
Mass extinctions during the past 500 million years rapidly removed branches from the tree of life and required millions of years for evolution to generate...
A new genus and species of eutherian mammal has been described from a handful of tiny teeth found in the Prince Creek Formation in northern Alaska, the...
The only known specimen of the small spotted cat species Leopardus narinensis was found on the Galeras Volcano in southern Colombia in 1989.
The tigrina...
Perucetus colossus substantially pushes the upper limit of skeletal mass in mammals, as well as in aquatic vertebrates in general. This early basilosaurid...
The thylacine (Thylacinus cynocephalus) is the largest of modern-day carnivorous marsupials and was hunted to extinction by European settlers in Australia....
The unusual fossil from around 125 million years ago shows a dramatic moment in time when a species of badger-like carnivorous mammal called Repenomamus...
Archaeologists in Brazil say they have unearthed 25,000- to 27,000-year-old pendants made of bony material from the extinct giant ground sloth Glossotherium...
Scientists from Ohio State University and elsewhere have developed a 3D computer model of the nose of the domestic cat (Felis catus) and simulated how...
Paleontologists in the United States have identified a new genus and species of early arctoid from an exquisitely preserved skeleton found in North Dakota’s...
Osteoderms are bony plates found in the skin of vertebrates, mostly commonly in reptiles where they have evolved independently multiple times, suggesting...
Taking someone else’s visual perspective marks an evolutionary shift in the formation of advanced social cognition. It enables using others’ attention...
After the extinction of non-avian dinosaurs at the end of the Cretaceous period, many mammals underwent a rapid increase in size. Several hypotheses for...
Over the past 100 million years, mammals have adapted to nearly every environment on Earth. Scientists with the Zoonomia Project have been cataloging the...
The sled dog Balto has been celebrated in books and movies for his role in delivering desperately needed diphtheria antitoxin to Nome, Alaska, in 1925....
The Fossil Lake deposits of the Green River Formation of Wyoming in the United States have produced nearly 30 bat fossils over the last 50 years. However,...
