World Science Podcast, July 31, 2009: Two solar power stores, from Spain and North Africa, a look at a European a mecca for bicyclists. Plus a very old tortoise who's about to become a first-time dad, panda problems in China, and jellyfish stirring up the

Summary: World Science Podcast, July 31, 2009: Two solar power stores, from Spain and North Africa, a look at a European a mecca for bicyclists. Plus a very old tortoise who's about to become a first-time dad, panda problems in China, and jellyfish stirring up the oceans.