The ability to generate a powerful electric field evolved independently in six species of fish not closely related to each other. New research unravels the genetic pathways of how this strange organ came to be.
An Alaska earthquake touched off a small tsunami and was followed by dozens of aftershocks felt in Alaska's Aleutian Islands. Originally measured as a magnitude 8.0, the earthquake has been downgraded to 7.9.
The charges against the suspect, James Holmes, include 24 counts of first-degree murder (two counts per victim) and 116 counts of attempted murder. Prosecutors say a decision on whether to pursue the death penalty in this case could be months away.