From April 15 to April 22 a public campaign called “Biodiversity of the Year” was held organized by “Young Biologists Association” NGO and supported by Yerevan State University Chairs of Zoology, Botany and Mycology. Within the framework of the campaign a wide range of events were initiated, which were then officially involved in the UN list of events devoted to International Biodiversity Day. The campaign, mentioned above, is launched within the framework of “Decade of Biodiversity: 2011-2020” initiated by UN and supported by “Rafford Foundation”. Photo exhibition on biodiversity was opened in Yerevan State University courtyard today. A wide range of events and campaigns dedicated to the International Day for Biological Diversity are being launched worldwide. The goal is one – to remind the world that human beings won’t be able to live without nature. Nature protection is a problem to be cared about by each of us.