Unlucky polar bears beset by toxins too
Polar bears just can't catch a break.
Already struggling to cope with climate change, the giant Arctic carnivores also face a chemical poisoning risk 100 times above levels considered safe for adult bears, according to a study released Thursday.
For bear cubs feeding on contaminated milk, that risk is 1,000-fold greater, researchers reported in the journal Environmental Toxicology and Chemistry.
"This work is the first attempt to quantify the overall risk of persistent organic... Читать дальше...