King Penguin Chick by Julien Beytrison: 'Oakum Boys' is the nickname for the brown juvenile King Penguins. (Picking oakum, a fiber such as hemp or jute obtained by unraveling old ropes was a job given in Victorian times to children and prisoners. The fiber was then tarred and used for caulking the seams of wooden ships.) http://en.wikipedia.org/wiki/Oakum #KIng_Penguin #Oakum_Boy
Reindeer (Rangifer tarandus) are thought to be the only mammals that can see ultraviolet light. A study in 2011 revealed that reindeer can see light with wavelengths as low as 320 nm, considerably below the human threshold of 400 nm. It is thought that this ability helps them to survive in the Arctic, because many objects that blend into the landscape in visible light, such as urine and fur, produce sharp contrasts in ultraviolet light.