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  1. Biodiversity | Definition & Facts | Britannica

    Jan 13, 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. 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 …

  4. 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.

  5. 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.

  6. 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 …

  7. 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 …

  8. 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.

  9. Soil biodiversity effects on ecosystems - Nature

    Jan 12, 2026 · Soil biodiversity is poorly studied compared to aboveground biodiversity, but is an important driver of ecosystem functioning. This Review discusses advances in research into the …

  10. 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 …