A quarter of a million people in Denmark gather on “Organic Day” in April to watch the cows being let out to pasture. For some 20 minutes, the cows seem to “dance” in the fields. – WTF Fun Facts
Source: https://www.npr.org/sections/thesalt/2015/04/20/401020408/when-danish-cows-see-fresh-spring-pasture-they-jump-for-joy
