The rate of cancer is increasing at an alarming rate among the humans nowadays. Humans are now spreading cancer among other species by modifying the environment, thus, being called the oncogenic species.
An oncogenic species moderates the environment causing cancer in other species.
Cancer can be triggered or increased from many things, such as environmental change, changes in diet, exposure to pollution etc. The impact of human activities on earth was studied, researchers led by Frédéric Thomas at Centre de Researches Écologiques & Évolutives sur le Cancer (CREEC), in France and they found that we have done many amazing things in last few millennia for the environment and the wildlife.
Disruption of cell growth, disruption of hormonal balance, unusual cell growth, DNA damage etc. is happening from environmental contaminations.
According to a study, 27% of beluga whales in the polluted region of Saint Lawrence Estuary in Canada had cancer. On the other hand, chlorine-based pesticides are intertwined with cancer in California sea lions. While in 1986, the tumors in local birds were hugely associated with the Radionucleotide contamination from the Chernobyl disaster. Hoards of macro plastics also represent potentially serious cancer threat to wildlife.
Some of the human-radix foods are also harmful to animals. Such as Xylitol, a sugar-alcohol sweetener used in candy, chewing gums, artificially baked foods etc. This is very harmful to dogs causing weakness, lethargy, loss of coordination, collapse even seizures. As well choking is also a problem if swallowed.
Beyond these contaminants, another thing such as light pollution is also the reason behind the increased cancer risk in wildlife. The artificial light at nighttime (ALAN) is believed as an environmental endocrine disruptor for wildlife.
Reduced genetic diversity in snow leopards and western banned bandicoots became much weaker in front of cancer-causing pathogens because of habitable change. Several genetic diversities are also associated with cancer commonness in certain foxes and zebras.
It is true that cancers’ age is more than the dinosaurs. A research was also released in 2016 that scientists found cancer in million-year-old fossils. But before humans polluted the planet and caused other things, the cancer susceptibility was likely quite less than today meaning that animals were much stronger to fight cancer.
Like if you see the studies then you’ll notice that cancer in dinosaurs was caused by just some fractures and eating certain plants or others that are high in carcinogenic chemicals, nothing more. Traveling in the future, the ancient Egyptians suffered from cancer because of tobacco and pollution. At present, viruses, smoking, obesity, radiation, carcinogens, hormones, lack of exercise and chronic inflammation are the reasons for cancer in both humans and animals.
Scientific evidence is enough to prove that humans are responsible for increasing the rate of cancer among the animals. What do you think? Please be open to comment your thoughts below.