At the 68th Session of the United Nations General Assembly on Dec. 20, 2013, the United Nations World Wildlife Day was established to take place annually on March 3 to recognize the unique roles and contributions of wildlife to people and the planet. March 3 is also the day that the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) was signed in 1973. Experience nature's wonders through these beautiful photos in honor of World Wildlife Day.