Robert Kirkman and Tony Moore's "The Walking Dead" comic book series begins in the heart of chaos. Rick Grimes, a deputy shot ...

The first full-stealth computer virus. In 1986, Brain was developed by Pakistani brothers Basit and Amjad Farooq Alvi, who were annoyed at having their heart monitoring software copied for free.

The axolotl (Ambystoma mexicanum) has extraordinary regenerative abilities—the salamander can regrow lost limbs and repair ...