As millions prepare to witness the upcoming solar eclipse, experts are highlighting a range of unusual phenomena that may occur, from shifts in animal behavior to an increase in traffic accidents. The celestial event, which will sweep across various regions, is known to trigger a cascade of strange occurrences due to the sudden, temporary darkness.
Animals, relying on natural cues rather than clocks, may experience confusion. "Some animals rely even more heavily on light cues; birds are one example," explained Dr. Kristina Paradowski, a clinical assistant professor at the Texas A&M School of Veterinary Medicine & Biomedical Sciences. Pet birds, for instance, might return to their perches as if it were nighttime. During previous eclipses, such as the 2017 event over the US, fireflies were observed flashing their lights, and in Mexico in 1991, spiders were seen taking down their webs. Dr. Paradowski noted that pets might also exhibit unusual reactions, potentially associating the sudden darkness with storms, particularly if they have storm anxiety.
Research has also indicated a correlation between solar eclipses and traffic incidents. Scientists from the University of Toronto charted a spike in road traffic accidents during the 2017 US solar eclipse, reporting an average of one extra vehicle crash every 25 minutes and one extra fatality every 95 minutes. Lead investigator Professor Donald Redelmeier suggested that factors like increased traffic, unfamiliar routes, speeding, driver distraction, impairment from related celebrations, or unsafe roadside viewing locations could contribute to this rise, rather than the change in light itself.
Beyond animal behavior and traffic, the eclipse can also affect local climate and wind patterns. Temperatures across affected regions may drop by several degrees Celsius as the moon obscures the sun. A spokesperson for the Royal Astronomical Society indicated that temperature drops could range from approximately 1°C to 3°C during a partial eclipse and around 5°C during a total eclipse, though these are averages. This cooling effect, along with a drop in wind speed, is typically temporary, lasting about an hour. Scientists have also observed changes in wind direction, termed 'eclipse wind,' linked to alterations in the atmospheric boundary layer. In 2015, experiments during a partial solar eclipse showed that the cooling ground caused warm air to stop rising, leading to a decrease in wind speed and a shift in direction.
Furthermore, studies have suggested that even microorganisms can be affected. A 2011 study by the Institute of Medical Sciences, Kuntikan, revealed that a solar eclipse had caused microorganisms to change shape. Researchers observed significant changes in bacteria and fungi before and after the event, noting alterations in bacterial morphology and sensitivity patterns, with one fungal species also showing a definite change in its morphology when exposed to sunlight during the eclipse phase.