Skip to content

How many wildlife species are currently known to science?

    The exact number of wildlife species known to science is difficult to determine as new discoveries are constantly being made. However, according to the World Conservation Union (IUCN), as of 2021, there are approximately 1.3 million known species of plants and animals. This number includes mammals, birds, reptiles, amphibians, fish, insects, and various other organisms. However, scientists believe this is only a fraction of the total number of species on Earth, with estimates ranging from 8.7 million to over 30 million species in existence. It is important to note that many species remain undiscovered, especially in areas with limited access or exploration, such as remote rainforests and deep oceans. Ongoing scientific research continues to reveal new species and provide a better understanding of biodiversity.


    Videos
    How do we know if an animal is an endangered species?
    How do we know if an animal i...

    YouTube · Mystery Science
    April 10, 2023
    How does a species become endangered? | JUST THE FAQS
    How does a species become end...

    YouTube · USA TODAY
    August 16, 2022
    Most Endangered Species | Comparison
    Most Endangered Species | Com...

    YouTube · Infinite Comparison
    October 12, 2020
    Science Bulletins: Biodiversity Unveiled—New Animal Discoveries of 2013
    Science Bulletins: Biodiversi...

    YouTube · American Museum of Natural History
    February 7, 2014
    YouTube data provided by YouTube Data API