Difference Between A Marsh, A Swamp, A Bog, And A Fen. In A Nutshell. The worldâs wetlands are ecosystems in themselves, and are defined by the flora and fauna they support. Marshes are nutrient-rich wetlands that support a variety of reeds and grasses, while swamps are defined by their ability to support woody plants and trees. Bogs are characterized by their poor soil and high peat content, while fens have less peat and more plant life than a bog.
Many adult Labradors will sleep for well over half of every 24 hours, and puppies under four months old may sleep as much as 20 hours a day.
This first period of N1 typically lasts just one to seven minutes. The second stage, or N2, which is signaled by sleep spindles and/or K complexes in the EEG recording, comes next and generally lasts 10 to 25 minutes.