The mysterious appearance of blue dogs in Chernobyl, a nuclear disaster site in Ukraine, has created widespread conversations of radiation effects on wildlife and artificial intelligence.
Images of these dogs caught viewers’ attention due to the bluish hue of their fur. Many viewers across social media believed that the color of the fur was created using artificial intelligence. Jennifer Betz, the veterinary medical director for the Dogs of Chernobyl program, tried to capture some of the blue dogs, but was unsuccessful, as the dogs are not comfortable around humans due to a lack of socialization. After these failed attempts, the team eventually found what most likely caused this: a porta-potty.
To give backstory, Chernobyl was a nuclear power plant near modern-day Pripyat, Ukraine. During a safety test in 1986, scientists lost control of the reactor, which led to a severe increase in temperature. This heat boiled cool water into steam, causing a catastrophic explosion that ruptured the reactor building and released radioactive material into the surrounding environment. The initial explosion immediately killed two workers. After three months, 28 firemen and emergency clean-up workers who rushed to the site died from acute radiation sickness, and another person from cardiac arrest. A second explosion led to a fire that burned for days and was responsible for further spreading of radioactive material. Without the cooling water, the fuel rods inside the reactor melted and became a radioactive molten mass. An estimated 200,000 people were relocated after the event, which spread dangerous levels of radiation to many surrounding regions. According to the International Atomic Energy Agency, at least 1800 cases of thyroid cancer in children occurred from ages 0 to 14 after the event, skyrocketing past previous trends. Additionally, the psychological effects of Chernobyl have been linked to numerous suicides and drinking problems.
Currently, an area expanding 30 kilometers around the plant is known as the “exclusion zone.” According to the International Atomic Energy Agency, 187 small communities are still abandoned to this day. While adults are not forbidden to reside in the Chernobyl Exclusion Zone (CEZ), children are strictly prohibited. The explosion also took its toll on the surrounding wildlife. For example, some leaves changed shape, and animals faced physical mutations. Mrs. Edwards, a Millbrook High School AP Environmental Science teacher, explained that the radioactivity in the soil led to “some genetic instability” and caused invertebrate populations to decrease. However, she also noted that due to humans’ absence in the area, “The populations will continue to grow. Wolf populations are more than seven times higher than they were in the uncontaminated reserves.” Despite the disaster and chaos caused by this nuclear site, it had an unusual and unique effect on wildlife and biodiversity.
The blue appearance of the dogs in the Chernobyl exclusion zone was not due to radiation or them being poorly edited, as many initially feared due to the site’s history. The true cause was that the dogs had simply found a leaking porta-potty and rolled in the blue liquid used as a chemical deodorizer, which then stained their fur a vibrant blue. The sight of the dogs fully and unnaturally coated in this color is what likely sparked the questions and confusion.
Little is known about the domestic dogs that reside in the CEZ, or about how these free-roaming dogs survived the explosion. The most widely agreed upon seems to be that the dogs were left behind by the evacuated people of Ukraine. After the explosion, many left behind dogs were killed by Soviet soldiers after being categorized as dangerous. Today, there are more than 500 dogs living in the CEZ. During Russia’s invasion of the Chernobyl Exclusion Zone (CEZ), many of the dogs that had become accustomed to the medical assistance from workers and organizations became malnourished and had to recoup. Reflecting on the wildlife’s overall comeback, Mrs. Edwards stated, “Oh, absolutely. Especially in the absence of humans, ecosystems can bounce back,” citing the ecological process of “secondary succession” as evidence of nature’s resilience.
Many scientists continue to study these dogs to learn about how they have lived with long-term radiation exposure. Some studies suggest they may have experienced genetic mutations to limit the radiation effects. While these dogs remain a mystery in many ways, the recent blue dye case has been solved.
