History

That giant extinct shark, Megalodon? Maybe it wasn't so mega
The ancient extinct shark that starred in the film The Meg is thought to be the largest shark that ever swam the Earth. But there's debate over what it really looked like.
Read Martin Luther King Jr.'s 'I Have a Dream' speech in its entirety
Americans across the U.S. are celebrating King's legacy this weekend. One way to reflect on his life and message is by revisiting his celebrated 1963 speech delivered at the Lincoln Memorial.
The world's population was up 75 million this year, will stand at 8 billion on Jan. 1
The growth rate for the U.S. in the past year was 0.53 percent, about half the worldwide rate. The U.S. added 1.7 million people and will have a population on New Year's Day of 335.8 million people.