Ciguatera fish poisoning Ciguatera fish poisoning Ciguatera fish poisoning, also known simply as ciguatera, is a foodborne illness caused by eating reef fish whose flesh is contaminated with certain toxins. Symptoms may include diarrhea, vomiting, numbness, itchiness, sensitivity to hot and cold, dizziness, and weakness. The onset of symptoms varies with the amount of toxin eaten from half an hour to up to two days. The diarrhea may last for up to four days. Some symptoms typically remain for a few weeks to months. Heart difficulties such as slow heart rate and low blood pressure may also occur. The specific toxins involved are
Electrical disruptions caused by squirrels Electrical disruptions caused by squirrels Electrical disruptions caused by squirrels are common and widespread, and can involve the disruption of power grids. It has been hypothesized that the threat to the internet, infrastructure and services posed by squirrels may exceed that posed by terrorists. Although many commentators have highlighted the lighter side of the concern, squirrels have proven consistently able to cripple power grids in the U.S. and other countries. While some commentators emphasize the humorous aspect, they still imply that the danger posed to the electrical grid from squirrels is ongoing and concerning. Instances of power grid shutdowns caused