Up until now, the accepted understanding about these egg-laying was that they were both descended from a land-bound ancestor. And while the platypus ancestors...
Paleontologists have discovered 50- to 25-million-year-old fossilized footprints of invertebrates and vertebrates, including a false saber-toothed cat...
New research from the University of Bristol provides evidence that many mammals were already shifting toward a more ground-based lifestyle leading up to...
A small mixodectid mammal called Mixodectes pungens had skeletal features adapted to living in trees, largely dined on leaves, and weighed about 1.3 kg,...
Paleontologists from the American University in Cairo and elsewhere say they have found an almost complete skull of the hyaenodont Bastetodon syrtos in...
Plant-eating sauropod dinosaurs were ecosystems engineers, profoundly changing their environments by knocking down trees and eating high volumes of vegetation....
In 2022, biologists with Conservation International conducted a survey that uncovered a trove of biodiversity in the heart of the Alto Mayo landscape,...
Paleontologists have found a fossilized jaw fragment and three isolated teeth from a new, relatively large (by Late Cretaceous standards) metatherian species...
Play is a widespread behavior present in distant species that, in its social form, relies on complex communication. Playful communication has been largely...
Paleontologists in Brazil have examined the well-preserved fossilized remains of two mammal-precursor species: Brasilodon quadrangularis and Riograndia...
In new research, paleontologists used synchrotron X-ray tomography of annual growth increments in the dental cementum of fossil mammals from three faunas...
In new research, a team of scientists from Virginia Tech examined how widespread exposure to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2),...
Eastern Africa preserves the most complete record of human evolution anywhere in the world but scientists have little knowledge of how long-term biogeographic...
Amoebidium appalachense, a protist closely related to animals, harbors the remnants of ancient giant viruses woven into its own genetic code, according...
Across the last 50,000 years land vertebrate faunas have experienced severe losses of large species (megafauna), with most extinctions occurring in the...
The nine-banded armadillo (Dasypus novemcinctus) is actually four different species, including a previously undescribed species endemic to the Guiana Shield,...
The three newly-identified species show combinations of features not previously seen before in other living or fossil monotremes, according to Professor...
Scientists from the University of Tasmania and Western University have experimentally demonstrated that kangaroos, wallabies and other Australian marsupials...
