Fish evolve by playing it safe

New research supports the creation of more marine reserves in the world's oceans because, the authors say, fish can evolve to be more cautious and stay away from fishing nets.

When it comes to predators, size matters

Marine reserves play an important role in sustaining ecosystem diversity and abundance. Their presence enables certain species to return to a natural size structure, which enables predators to control destructive prey.

Killer debt: Study shows link between debt and mortality rates

A new study from the University of Colorado Denver shows a direct link between financial strain and increased risk of death, a finding with potentially major implications for both economic and health care policy.

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