Botulism in wildlife is caused by which organism?

• A. Escherichia coli
• B. Staphylococcus aureus
• C. Clostridium botulinum
• D. Bacillus cereus

Answer: (C)

Botulism in wildlife is caused by the toxin produced by Clostridium botulinum, an anaerobic, spore-forming bacterium found in soil and decaying organic matter. Under low-oxygen conditions, such as in decomposing carcasses or rotting plant material, this organism can produce botulinum neurotoxin, one of the most potent toxins known. When wildlife ingests the toxin, it disrupts nerve transmission by blocking acetylcholine release, leading to rapid, flaccid paralysis, weakness, and often death. This is why outbreaks are often linked to decaying animal matter or submerged organic material in the environment, and why removing carcasses and preventing contamination are key prevention steps. Other bacteria listed cause different illnesses and toxins, not botulism, which is specifically tied to Clostridium botulinum and its neurotoxin.