Biodiversity or biological diversity is the variety of life on Earth. It comprises all living things including their unique genetic make-up and ranges from microscopic viruses to the largest animals on the planet such as the blue whale, small algae and big plants such as the giant sequoia, and the expansive landscapes comprised of a variety of ecosystems. Humans are also an integral part of biodiversity.
What is biodiversity?
UNESCO
http://www.unesco.org/mab/doc/iyb/faq.pdf
You are an integral part of nature
Halting the biodiversity loss is now in our hands
Biodiversity is an insurance policy for the world’s poorest communities
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Biodiversity
http://www.unesco.org/new/en/education/themes/leading-the-international-agenda/education-for-sustainable-development/biodiversity/
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Man and the Biosphere Programme
http://www.unesco.org/new/en/natural-sciences/environment/ecological-sciences/man-and-biosphere-programme/