New research by scientists studying environmental damage from the 2010 Deepwater Horizon oil spill explains why crude oil causes heart failure in fish.
The 17th annual Great Backyard Bird Count takes place worldwide February 14-17. It's your chance to help scientists track the health of bird populations.
Thousands are being evacuated on densely populated island of Java. Eruption took place 90 minutes after alert status for volcano was raised to highest level.