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  1. Biodiversity | Definition & Facts | Britannica

    Feb 11, 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 …

  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. 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 …

  6. What is Biodiversity? Definition, Importance, Threats, and ...

    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.

  7. 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.

  8. What is biodiversity, and why is it so important? - RHS Gardening

    Oct 17, 2025 · Biodiversity encompasses all life on Earth, and the biodiversity we see today is the product of 4.5 billion years of evolution. Biodiversity is often used to mean the number of …

  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 …

  10. Biodiversity: What It Is, Its Importance, and Conservation

    Jul 28, 2025 · Biodiversity refers to the variety of life found on Earth at all its levels, encompassing everything from genes to entire ecosystems. It represents the multitude of different plants, …