The Shark Conservation Act - passed by U.S. lawmakers this week and now headed for President Obama's desk - would tighten the ban on capturing sharks for their fins.
Thousands of new flowering plants - unknown to the world - might sit in storage for 50 years before it earns the title of "new species," according to a new study.
Finally the weather lifted, and Operation IceBridge made a series of flights over the Antarctic Peninsula and a crucially important flight over the South Pole.
The heat inside Earth moves continents, builds mountains and causes earthquakes. You know Earth must be hot inside. What is the source of all this heat?
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