Bottles and bags, as well as other plastic waste, make up about 25% of the Arctic polar bear ration
A quarter of the diet of polar bears is made up of plastic waste. Animals find them in places of mass dumps in areas where people live.
Russian scientists investigated the stomach contents and animal excrement. The remains of undigested plastic were found in them. These are mainly plastic bags, Interfax reports citing the deputy director of the Russian Arctic National Park for scientific work, Ivan Mizin.
It is also noted that plastic enters the stomachs of birds and marine mammals. This is due to the fact that the northern seas continue to be contaminated with plastic waste.
Scientists recently examined the contents of the stomachs and intestines of 55 green crabs and 37 Chinese fluffy crabs that live in the Thames.
Different types of plastic were found in the gastrointestinal tract of individuals. To a greater extent, its fibers were located in a subcranial structure, which is responsible for grinding food.