The oak tree produces acorns, which are a type of nut and serve as a critical food source for various wildlife. Oaks belong to the genus Quercus and are commonly found in deciduous forests across the northern hemisphere. Acorns develop from the flowers of the oak trees, typically maturing in one growing season. These nuts play an essential role in the ecosystem, providing sustenance for animals such as squirrels, deer, and birds. Additionally, acorns contribute to forest regeneration as they can sprout into new oak trees, thus ensuring the continuation of this important tree species.