The Wood Ant, scientifically known as Formica rufa, is a common species found in forests across Europe and parts of Asia. These ants are known for their large size, typically measuring between 8 to 12 millimeters in length. They build large, conspicuous nests made of twigs, leaves, and soil, often found in sunny areas. Wood ants are social insects that live in colonies, which can contain thousands of individuals. They play a crucial role in their ecosystem by aerating the soil and helping to decompose organic matter. Additionally, they are known to protect aphids, which provide them with honeydew, a sugary substance that serves as food.