London's gruesome attack and the rising threat of lone-wolf terrorism
How a Ghost Army of American artists helped defeat Hitler
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Let's kill off more main characters in movies
Immigrant entrepreneurs wanted: Rust belt cities need you
Did IRS official Lois Lerner waive her right to silence?
4 drone questions Obama should answer
The FBI kills Tsarnaev's friend
10 things you need to know today
Can Christie win the GOP nomination?
7 annoying teenage sounds
Is Greek yogurt hurting the environment?
WATCH: London terror suspect defends beheading
The daily gossip: Paris Hilton is releasing another album, and more
The White House's war on media backfired
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Animals take action
The 12 weirdest animal penises on Earth [Updated]
9 animal species named after famous people [Updated]
Do chimps go through midlife crises too?
Brazil's bizarre plan to clone endangered wolves, jaguars, and monkeys
WATCH: Video of the rare millipede with a record-breaking 750 legs
Sauroniops: The Tyrannosaurus-sized dinosaur named after the Lord of the Rings villain