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 ...

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

Marsupial lions and tigers A team of researchers believe a new technique will help to dispel the idea that marsupial carnivores have been less diverse and less evolved than their placental cousins.

Which group of mammals has the more 'primitive' reproductive strategy -- marsupials, with their short gestation periods, or humans and other placental mammals, which have long gestation periods? For ...

Researchers have uncovered genetic elements that drive the rapid development of marsupials' facial features. The study in fat-tailed dunnarts, native to Australia, is published today in eLife. The ...

THE mammalian ancestors of both mice and men scurried under the feet of the dinosaurs. According to the fossil record, our ancestors didn’t split into modern groups of placental and marsupial mammals ...