April 25 marks World Penguin Day

Little blue penguins are seen at a natural reserve in Dunedin, South Island of New Zealand, April 22, 2021. After a day of fishing, little blue penguins came ashore and returned home to their nests under the cover of darkness in Dunedin. Little blue penguin is the world's smallest penguin at just 25-35cm tall, and weighs around 1 to 1.5kg. It is found in many places around New Zealand and Australia. World Penguin Day is a celebratory and educative initiative on April 25, which encourages people to learn more about penguins and their environment. (Xinhua/Guo Lei)