Why certain fishes went extinct 65 million years ago

Large size and a fast bite spelled doom for bony fishes during the last mass extinction 65 million years ago, according to a new study to be published March 31, 2009, in the Proceedings of the National Academy of Sciences.

Concept of 'glass cliff' resonates for women

The inventors of the term "glass cliff" – which appears on the shortlist for the Oxford Dictionaries word of the year 2016 – say it has found fame because it resonates for so many women.