The International Day of Biological Diversity is celebrated every year on May 22 to increase awareness and understanding of biodiversity issues across the world. The main aim of this international day is to spread awareness about the importance of maintaining biodiversity all around the world.

Biological Diversity also called as biodiversity is the variability and variety of life on Earth, which can be measured on several levels such as ecosystem diversity, phylogenetic, genetic variability, and species diversity. It also refers to among microorganism species, plants, and animals. Biological diversity holds economic and ecological importance that provides fuel, clothing, nourishment, housing, and many other resources.

Biological diversity also refers to varieties of living species on the Earth such as fungi, animals, plants, bacteria, and many more. It also describes the wide range of different life forms on the Earth that involve maintaining life including cultural practices, ecology, and evolution. It also plays an important role in several aspects of life on the planet.