While walking through a forest in the chilled morning, you might have encountered a mysterious “hair ice” that might look like a delightful cotton candy. These cotton candies of the forest have always fascinated humans for ages. Untill 2015 researchers assumed that these hair ice emerge due to fungus, when scientists finally confirmed the species behind it. In 2015, researchers found a species called E. effusa in all the hair ice samples. The fungus gives the shape to the hair ice and prevent them from recrystallization. However, more questions need to be answered to get more insights into the formation of these hair ice.