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The Encyclopedia of Life (EOL) is a free, online encyclopedia intended to document all of the 1.9 million living species known to science. It aggregates content to form "pages" for every known species. Content is compiled from existing trusted databases which are curated by experts and it calls on the assistance of non-experts throughout the world.
Animal Genome Size Database - created by Dr. T. Ryan Gregory of the University of Guelph in Canada—publishing genome size estimates for vertebrate and invertebrate animals; Animal Science Image Gallery - a work of the United States Federal Government—containing images, animations, and video for classroom and outreach learning
The word animal comes from the Latin noun animal of the same meaning, which is itself derived from Latin animalis 'having breath or soul'. [6] The biological definition includes all members of the kingdom Animalia. [7] In colloquial usage, the term animal is often used to refer only to nonhuman animals.
Free Encyclopedia of Appalachia: English Dedicated to the region, people, culture, history, and geography of Appalachia. Defunct Encyclopedia of Arkansas: English Project of the Central Arkansas Library System and is the only U.S. state encyclopedia sponsored by a public library Free Encyclopedia of Chicago: English Free Encyclopedia Virginia ...
Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million in total. Animals range in size from 8.5 millionths of a metre to 33.6 metres (110 ft) long and have complex interactions with each other and their environments, forming intricate food webs .
Inclusion on the list doesn't automatically mean the absolute truth is on these websites, so always be critical and compare information between different sources. The content of the subsections is alphabetically organized. Please add free online sources if you know some that are missing in this list, but try to keep it relevant and trustworthy.
Biologists can study life at multiple levels of organization, [1] from the molecular biology of a cell to the anatomy and physiology of plants and animals, and the evolution of populations. [1] [6] Hence, there are multiple subdisciplines within biology, each defined by the nature of their research questions and the tools that they use.
BioLib is an international encyclopedia of plants, fungi and animals. X X X X X X X X X X Apart from taxonomic system you can visit the gallery, glossary, vernacular names dictionary, database of links and literature, systems of biotopes, discussion forum and several other functions related to biology CITES species database [7]