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Researchers reveal new insights into the complex evolutionary history behind the distinctive upright posture of modern placental and marsupial mammals, showing the transition was surprisingly complex ...

A 236-million-year-old cynodont fossil from Argentina contains evidence that the animal may have given birth to live young ...

A groundbreaking new research project has analyzed the evolution of the placental mammal skull using 3D scans of 322 specimens housed in more than 20 international museum collections, and crafted a ...

Shapes of beaks and snouts come in an extraordinary range of forms, reflecting adaptations to different lifestyles and environments. Yet beneath this diversity lies a paradox: across birds and mammals ...

Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results.

A dolphin breaking the surface for air can seem like a reminder of its mammalian past. But evolution is not nostalgia. The same body that still needs oxygen from the atmosphere is also one of the ...

A new study compiles data on more than 3,000 species to show how climate and geologic changes across Asia over the last 66 million years have shaped the evolution of the continent's mammals. A new ...

European fossil evidence suggests modern carnivores did not simply replace rival predators by outcompeting them. Carnivoramorphs expanded into a wider range of body sizes after warming about 40 ...

The fossil record has a habit of reshaping ideas that once seemed settled. In the Late Cretaceous, long before the extinction of the dinosaurs, small mammals occupied a world dominated by much larger ...

Evolution of life histories : theory and patterns from mammals / Mark S. Boyce -- Geographic variation in life history traits of the Hispid cotton rat (Sigmodon hispidus) / Guy N. Cameron and Polley A ...