Around 100 million years ago, a remarkable evolutionary shift allowed placental mammals to diversify and conquer many cold regions of our planet. New research from Stockholm University shows that the ...

Mammal evolution has been flipped on its head, according to new research that suggests marsupials are the more evolved mammals. By estimating how the common ancestor of mammals reproduced and ...

Phylogenetic analysis of marsupial evolution integrates molecular sequences, morphological data and fossil evidence to reconstruct the relationships and temporal radiation of metatherian mammals.

The koalas clambering around eucalyptus canopies may be cuddly herbivores, but their extinct relatives were horrifying predators. The charismatic marsupials are the closest living relatives of ...

Koalas are endangered in much of Australia now but in in the past there were multiple species living across the continent. The discovery of an ancient relative of the koala helps fill a 30 million ...

Fossils from Riversleigh in north-west Queensland have revealed a previously unknown lineage of insect-eating marsupials called Keeunamorphia. The discovery helps fill a major gap in Australia's ...

Marsupials may have richer social lives than previously thought. Generally considered loners, the pouched animals have a wide diversity of social relationships that have gone unrecognized, a new ...

Shoot for the moon. Even if you miss, you’ll land on the next tree. Many groups of mammals seem to have taken this evolutionary advice to heart. According to our newly published paper in Science ...

Hidden beneath the dunes, a mysterious creature glides through the sand. This is not one of the giant worms of Arrakis in Frank Herbert’s sci-fi epic, Dune. Rather, it’s an enigmatic and tiny mammal ...

Rogue teeth found in an outback fossil deposit have turned decades of thinking on marsupial evolution "on its head", researchers say. Teeth and jaw fragments from Riversleigh in north-west Queensland ...