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  1. Biodiversity | Definition & Facts | Britannica

    Dec 1, 2025 · Biodiversity, the variety of life found in a place on Earth or, often, the total variety of life on Earth. A common measure of this variety, called species richness, is the count of …

  2. Biodiversity - Wikipedia

    Biodiversity is the variability of life on Earth. It can be measured on various levels, for example, genetic variability, species diversity, ecosystem diversity and phylogenetic diversity. [1] .

  3. Biodiversity: What It Is, Why It Matters, and How It's Measured

    2 days ago · Explore what biodiversity is, why it matters, and how it's measured. Learn about species richness, ecosystem diversity, and the global importance of preserving life's variety.

  4. Biodiversity - National Geographic Society

    May 7, 2025 · Biodiversity refers to all the different kinds of living organisms within a given area, including plants, animals, fungi and other living things. It includes everything from towering …

  5. What is Biodiversity? Definition, Importance, Threats, and …

    Apr 13, 2025 · Biodiversity is not just about the number of species. It’s about relationships, interactions, processes, and the evolutionary dance of adaptation and survival. In this article, …

  6. What Is Biodiversity? - Smithsonian National Museum of Natural …

    Biodiversity — short for biological diversity — is the variety of all living things and their interactions. Biodiversity changes over time as extinction occurs and new species evolve.

  7. What is Biodiversity? - U.S. National Park Service

    Mar 4, 2019 · Biological diversity (or biodiversity) is the variety of life on Earth. It includes all living things, not just the plants and animals that are common or easily seen. It includes species that …

  8. Biodiversity 101: Protecting the variety of life on Earth | TNC

    Sep 18, 2024 · What is biodiversity? Biodiversity, or biological diversity, is the variety of life on Earth. It’s a rich and wonderful fabric woven by millions of species, their interactions with each …

  9. Yale Experts Explain Biodiversity

    What is biodiversity? Biodiversity – ‘biological’ (living) and ‘diversity’ - is the variety and variability of all life on Earth, including plants, animals, bacteria and microorganisms, and humans.

  10. What is biodiversity and why does its loss matter?

    Biodiversity is the volume of life on Earth, as well as how different species interact with each other and the physical world around them.