Bacteria: resisting antibiotics since at least 30,000 BC
That’s right, antibiotic resistance has been around for millennia. Although it’s a critical danger today, with our over-use of antibiotics and dangerous outbreaks and all … bacteria have had some of the genes involved in resistance for at least 30,000 years.
This isn’t surprising considering that some of our oldest antibiotics are based on natural compounds (like penicillin). Bacteria have been working up ways to defend themselves since long before we threw a Z-Pak at ‘em.
(via Discover Magazine)