World Penguin Day is celebrated on 25 April every year, coinciding with the time of the birds annual northward migration. Penguins are one of roughly 40 species of flightless birds, who who live almost exclusively in the Southern Hemisphere. Only one species of penguin, the Galapagos can be found north of the equator. World Penguin Day aims is to raise awareness of the plight of some penguins and highlighting the importance of protecting the Antarctic's marine environment.
Spending most of their life at sea, penguins are able to dive to a depth of 565 metres – deeper than any other bird. There are 18 species of penguins, 13 of which are endangered, with some on the brink of extinction. In this gallery, IBTimesUK presents a selection of penguin photos taken around the world: