Alligator study reveals insight into dinosaur hearing

To determine where a sound is coming from, animal brains analyze the minute difference in time it takes a sound to reach each ear—a cue known as interaural time difference. What happens to the cue once the signals get to ...

Mapping the family tree of stars

Astronomers are borrowing principles applied in biology and archaeology to build a family tree of the stars in the galaxy. By studying chemical signatures found in the stars, they are piecing together these evolutionary trees ...

The anatomy of flower color

Roses are red, violets are blue. Everybody knows that, but what makes them so? Although plant breeders were aware of some of the genes involved, there was as yet no quantitative study of how pigment turns a flower red, blue ...

Fossils enrich our understanding of evolution

Our understanding of evolution can be enriched by adding fossil species to analyses of living animals, as shown by scientists from the University of Bristol.

New studies explore impact of environmental change on tooth wear

Researchers at the University of Arkansas have established that pits and scratches on the teeth of mammal fossils give important clues to the diet of creatures that lived millions of years ago. Two new studies, both involving ...

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