· Jailbirds for conservation: Britain recruits prisoners to build bird houses and survey threatened species. · Virgin Galactic rejects $1 million proposal to shoot sex-in-space video on its commercial spacecraft, the WhiteKnightTwo. · Bikers go green: Honda shrinks the hybrid engine and will offer hybrid motorcycles by 2011. · Hundreds of exhausted baby penguins are washing up on Brazilian beaches, and scientists don’t know why. · Put on your thinking cap.No, really.