A river disappears: Villagers believe that the missing water is being held up by a debris dam that was created by landslides triggered in the earthquakes.
Cornell University researchers have found that parent parrots in the wild pass on learned vocal signatures - a bit like human names - to their offspring.
Sri Lanka will conduct its first large-scale elephant census in nearly a century, amid fears its elephant population has been reduced by half in the past 100 years.