Penguin brains not changed by loss of flight

Losing the ability to fly gave ancient penguins their unique locomotion style. But leaving the sky behind didn't cause major changes in their brain structure, researchers from The University of Texas at Austin suggest after ...

Last meal reflects spiral-shaped intestine

A last meal provides new insights: The fossilized food remains of the extinct predatory fish Saurichthys reflect its spiral-shaped intestine. The spiral valve in fossils from Southern Switzerland is similar to that of sharks ...

Mammal diversity exploded immediately after dinosaur extinction

The diversity of mammals on Earth exploded straight after the dinosaur extinction event, according to UCL researchers. New analysis of the fossil record shows that placental mammals, the group that today includes nearly 5000 ...

People and primates share chewing adaptations

Scientists have gained insights into how primate species have evolved through space and time by studying the anatomy of their lower jaws in relation to diet.

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