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  1. Biodiversity | Definition & Facts | Britannica

    Jan 22, 2026 · 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. 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.

  5. 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 …

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

    Dec 26, 2025 · Biodiversity refers to the variety of life at all levels, genes, species, and ecosystems, while ecosystem services are the benefits that biodiversity provides to humans.

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

    Apr 13, 2025 · In this article, we’ll take a deep dive into what biodiversity is, why it matters, how it’s measured, what threatens it, and what we can do to preserve it for generations to come.

  8. Biodiversity - Latest research and news | Nature

    Feb 3, 2026 · Biodiversity is the variation in living forms and can be measured in ways that include the number of species, functional variety of species, evenness of species distribution or genetic diversity.

  9. 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 are …

  10. 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 it as “the...