Polar bear cub triplets with an adult bear in Manitoba, Canada. This image was captured by the wildlife photographer Thomas Kokta, who spent years taking photos of polar bear families. [Photo: IC]"

A Canada goose shelters a group of about 20 week-old goslings on a cool morning near a pond in Roseburg in the American state of Oregon on April 22, 2013. International Day for Families was proclaimed by the United Nations with the aim of increasing knowledge about the social, economic, and demographic processes that affect families. [Photo: IC]"

Two Emperor penguins with a baby emperor penguin nestling between them on January 23, 2014. [Photo: IC]"