Marine biology is the scienteefic study o organisms in the ocean or ither marine or brackish bodies o watter.

Two views of the ocean frae space
Anly 29 percent o the Yird's surface is laund. The rest is ocean, home tae marine life. The oceans average nearly fower kilometres in depth an are fringed wi coastlines that run for 360,000 kilometres.[1][2]


  1. Charette, Matthew; Smith, Walter H. F. (2010). "The volume of Earth's ocean". Oceanography. 23 (2): 112–114. doi:10.5670/oceanog.2010.nbjhbhҪ51. Retrieved 13 January 2014.
  2. World The World Factbook, CIA. Retrieved 13 January 2014.