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 ...

An International team, including scientists from Carnegie Museum of Natural History, have discovered the most primitive and oldest know relative of all marsupial mammals. Pittsburgh -- An ...

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 ...

A wombat-like creature, the size of a black bear and weighing 330 pounds, roamed the earth some 25 million years ago, scientists have discovered. A team led by researchers from the University of ...

The fossil of a tiny creature found in northeast China is helping scientists determine when mammals split into different groups: those with babies that develop inside their mothers and those that ...

Kangaroos, koalas and other marsupials are even weirder than we give them credit for. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Mammals ...

Behavioral Ecology and Sociobiology, Vol. 68, No. 7 (July 2014), pp. 1085-1096 (12 pages) Offspring sex ratios in mammals vary in potentially adaptive yet unpredictable ways. An integrative approach ...

A sleepy koala may seem worlds apart from a giant Ice Age predator, but scientists have uncovered the first molecular ...

A small endangered marsupial is dying for sex — literally. The male northern quoll — a carnivorous mammal about the size of a small domestic cat — is walking so far and sleeping so little in its ...

An ancient mammal the size of a badger may have used its bone-crushing canines and powerful bite to take down little dinosaurs, researchers have found. In fact, the little guy could chomp down with ...