Supplementary videos

• Cholera: exotoxin
• Anthrax: exotoxin
• Botulinum toxin: a neurotoxin that inhibits release of neurotransmitters

Extra credit readings

• Row over ancient bacteria BBC News Online 6/7/01
• NZ flatulence tax outrages farmers BBC News 6/20/03
• Cow Power Could Generate Electricity For Millions ScienceDaily 7/25/08
• Sheep bacteria widen diet of cattle Science News 6/6/98
• Beyond Botox Time 5/19/03

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