International Sloth Day, marked annually on Oct. 20, was founded by nonprofit animal protection organization AIUNAU in 2010.
AIUNAU said members Sarita Kendall and Tinka Plese came up with the idea for International Sloth Day during the first Sloth International Meeting in Medellin, Colombia, in November 2010.
The day is meant to raise awareness of conservation of the six sloth species, two of which are considered to be of concern by the World Wildlife Fund. The pygmy three-toed sloth is listed as “Critically Endangered” and the maned three-toed sloth is listed as “Vulnerable.”
The United Nations says the most critical challenge facing sloths is deforestation.