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  1. Biodiversity | Definition & Facts | Britannica

    Apr 18, 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? 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. 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. 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. Biodiversity - World Health Organization (WHO)

    Feb 18, 2025 · Biodiversity, the variability among living organisms from all sources, underpins all life on Earth. This includes diversity within species, between species and across ecosystems, representing …

  8. What Is Biodiversity and Why Does It Matter? - ScienceInsights

    Mar 8, 2026 · Biodiversity, short for biological diversity, is the total variety of life on Earth: every organism, every species, every genetic difference between individuals, and every ecosystem they …

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

    Jan 22, 2024 · In simple terms, biodiversity refers to all types of life on Earth. The UN Convention on Biological Diversity (CBD) describes it as “the diversity within species, between species and of...

  10. What is biodiversity and how are we protecting it? - BBC News

    Oct 18, 2024 · Biodiversity is the variety of all life on Earth - animals, plants, fungi and micro-organisms like bacteria. Together they provide us with everything necessary for survival - including fresh...