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  1. Biodiversity | Definition & Facts | Britannica

    5 days ago · 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 species in an area.

  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. What is Biodiversity? Why Is It Important? | AMNH

    The term biodiversity (from “biological diversity”) refers to the variety of life on Earth at all its levels, from genes to ecosystems, and can encompass the evolutionary, ecological, and cultural processes that …

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

    Dec 26, 2025 · 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.

  5. What is biodiversity? - World Wildlife Fund

    Biodiversity is all the different kinds of life you’ll find in one area—the variety of animals, plants, fungi, and even microorganisms like bacteria that make up our natural world.

  6. 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 redwood …

  7. What is Biodiversity? Definition, Importance, Threats, and Conservation

    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, we’ll take a deep …

  8. Introduction to biodiversity - Center for Biodiversity Outcomes

    Biodiversity is the variety of living species on Earth – plants, animals and microorganisms – and the ecosystems they form.

  9. What Is Biodiversity? - Smithsonian National Museum of Natural History

    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.

  10. 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 other, the …