Authorities have rescued a man after he tumbled off a cliff in Alaska. The incident occurred on Sunday, March 30, when firefighters received a call for help near Point Woronzof off the coastal trail, ...

From diving off cliffs to starving for months, emperor penguins are continuing to surprise scientists with their ability to ...

For "Earth Day", the National Geographic documentary series "The Secret World of Penguins", produced by Oscar winner James ...