Limnology (; from Greek: Λίμνη limne, "lake"; and λόγος, logos, "knowledge")'s often regarded as a division of ecology or environmental science. It's, however, defined as "the study of inland waters". This comprises the biological, chemical, physical, geological, and other attributes of all inland waters (running and standing waters, both fresh and saline, natural or man-made). This includes the study of lakes and ponds, rivers, springs, streams… (More on Limnology)