Evidence found of stingrays making noise

A team of researchers affiliated with several institutions in Australia working with one colleague from Sweden and another from Spain, has obtained recorded evidence of rays generating sound. In their paper published in the ...

Study refutes claim that T. rex was three separate species

A new study refutes a provocative claim made earlier this year that fossils classified as the dinosaur Tyrannosaurus rex represent three separate species. The rebuttal, published today in the journal Evolutionary Biology ...

Ancient Siberian dogs relied on humans for seafood diets

As early as 7,400 years ago, Siberian dogs had evolved to be far smaller than wolves, making them more dependent on humans for food including sea mammals and fish trapped below the ice, a new study showed Friday.

Competition limits the ranges of mountain birds

A new study helps reveal why tropical mountain birds occupy such narrow elevation ranges, a mystery that has puzzled scientists for centuries. While many assumed temperature was responsible for these limited distributions, ...

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