Reuters - Lighting levels don't only affect human mating behavior -- scientists in Singapore have found certain types of light can make jumping spiders attractive to the opposite sex.

Reuters - Mozart, an iguana with an erection that has lasted for over a week, will have his penis amputated in the next couple of days.

Reuters - Viagra and similar drugs used to treat erectile dysfunction, often referred to as ED, work for men with diabetes and appear to be safe, according to a research review being published Wednesday.

AFP - Viagra, Cialis and Levitra, wildly popular erectile dysfunction drugs, can improve sexual function in men with diabetes, a study said.

AP - An AIDS organization sued Pfizer Inc. on Monday over ads the group says encourage use of Viagra as a party drug. The group said recreational use of the drug furthers the spread of HIV and other sexually transmitted diseases.

AFP - A leading American AIDS group said it was suing Pfizer, the producer of Viagra, accusing the company of increasing the spread of sexually-transmitted diseases through "irresponsible" marketing.

Reuters - A major U.S. AIDS treatment group plans to file a lawsuit on Monday that accuses drug giant Pfizer Inc. of illegally promoting recreational use of its blockbuster impotence pill Viagra.