An international team of scientists has discovered that unique lipids in polar bear sebum prevent ice accumulation on their fur, potentially revolutionizing ice-repellent technologies. The researchers identified key components in polar bear sebum that distinguish it from other mammals, including the absence of squalene. Their experiments showed that unwashed polar bear fur exhibited lower ice adhesion compared to human hair and washed polar bear fur. The findings could lead to the development of more sustainable and chemical-free anti-icing coatings, replacing problematic compounds like PFAS. The research also sheds light on Inuit hunting strategies and the use of polar bear fur to reduce noise on ice.