European scientists have combined virtual reality with treadmills to allow users to "walk through" the ancient city as it looked before the devastating volcanic eruption.
The giant freshwater species, previously thought to be extinct in the wild, features in local legend as delivering a magic sword to defeat invaders in the 16th century.
Aggressive horses, scared pigs, and hyperactive dogs are some of the "patients" treated by Ida Brajkovic at Croatia's first center for animal psychiatry.
Claude, an Asiatic black bear living in a Japanese zoo, has attracted attention for twirling sticks. The habit could be an act of boredom or play, experts say.
The largest freshwater fish ever caught, the Mekong giant catfish, could face extinction if a large dam is completed in Laos, experts say. Part six of an ongoing series on megafishes.
Proteins in the reptiles' blood have been shown to kill drug resistant bacteria and even to partially destroy the virus that causes AIDS, researchers announced.