Finding the polar bear's genitals is getting smaller and smaller

Research shows that chemical pollutants have weakened the penis, causing the polar bear to become extinct.

Many studies have shown that declining polar bear populations are caused by climate change and global warming. This factor has caused more and more ice to melt, threatening the habitat of polar bears.

However, recent research by scientists at Aarhus University (Denmark) has shown that high concentrations of chemical pollutants weaken the internal bones of the genital organs - the cause of the polar bear Extreme early extinction.

Specifically, the experts found that chemical pollutants have reduced bone density, broken penis structure in male bears, causing many accidents during mating. This greatly affects the maintenance of the race in polar bears.

According to researchers, mammals such as otters have penile bones or baculum - a byproduct of evolution.

Leading the research, scientist Christian Sonne of Aarhus University (Denmark) discovered that when exposed to a contaminant called polychlorinated biphenyls (PCBs) in solvents, pesticides . will making the bear's penis shrink.

PCBs were previously used in paint and rubber products in 1930 but were banned in 2001 after scientists discovered they could cause cancer.

For further research, experts conducted a test of penile bones of 279 polar bears born in northeastern Greenland and Canada between 1990 and 2000.

They use X-rays to study the calcium density in the bone and then compare their results with the pollution data in the area.

The team found a link between low bone density and high PCB concentrations, whereby the polar bear's penis portion becomes weaker, sometimes shrinking, reducing the probability of mating. of male bears. Experts also found that this tiny atrophic penis exists in the otter.

Experts say that with the current climate change and chemical pollution, 1/4 polar bears living in Canada may die.