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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. 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 …

  4. Biodiversity - National Geographic Society

    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 trees to …

  5. Biodiversity: What is it and how can we protect it? - UN News

    Jan 22, 2024 · What does 'biodiversity' mean and why is it important? In simple terms, biodiversity refers to all types of life on Earth. The UN Convention on Biological Diversity (CBD) describes …

  6. 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.

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

    Mar 4, 2019 · A small, brown pika hides among rocks. JR Douglass, NPS Photo. Biological diversity (or biodiversity) is the variety of life on Earth. It includes all living things, not just the …

  8. 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, …

  9. 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.

  10. Biodiversity: What does it mean and why do we need it? | WWF

    Think of biodiversity as the incredible interconnected tapestry of life on Earth, woven from millions of species that have evolved over billions of years. It's the vibrant coral reefs teeming with …