WTF Fun Fact – Spittlebug Foam

There are tiny insects called spittlebugs that create foamy bubbles on a plant which insulate them from heat and cold, keep them moisturized, and hide them from predators. – WTF Fun Facts

Source: https://www.nytimes.com/video/science/100000006346172/how-the-spittlebug-builds-its-bubbly-fortress.html