On this week's NewsFlash, we find out why some people are genetically pre-disposed to AIDS, how the giardia bug changes coats to trick the immune system and why captive elephants live shorter lives than in the wild.  Plus, why dogs get jealous, and how to lose a satellite!

• Jealous Dogs and Lost in Space - Naked Scientists Science Podcasts and Science Radio Shows
• Jealous Dogs and Lost in Space - Naked Scientists Science Podcasts and Science Radio Shows
• Are Dogs Ticklish? - Podcasts
• Do Dogs Understand People? - Podcasts
• Aspirin's Anniversary - Podcasts
• Plant Pests and Plant Pathology - Podcasts