Template:POTD/2015-09-24

Picture of the day

Nembrotha cristata is a colorful species of sea slug in the family Polyceridae. This black nembrothid, which is covered with green nodules, grows to at least 50 millimetres (2.0 in) in length. It resides in the tropical Indo-West Pacific Ocean.Photograph: Chriswan Sungkono