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Marine life, sea life, or ocean life is the plants, animals, and other organisms that live in the salt water of seas or oceans, or the brackish water of coastal estuaries. At a fundamental level, marine life affects the nature of the planet. Marine organisms, mostly microorganisms, produce oxygen and sequester carbon.
Marine biology is the scientific study of the biology of marine life, organisms that inhabit the sea. Given that in biology many phyla, families and genera have some species that live in the sea and others that live on land, marine biology classifies species based on the environment rather than on taxonomy.
Jellyfish, also known as sea jellies, are the medusa-phase of certain gelatinous members of the subphylum Medusozoa, which is a major part of the phylum Cnidaria. Jellyfish are mainly free-swimming marine animals with umbrella-shaped bells and trailing tentacles, although a few are anchored to the seabed by stalks rather than being mobile.
Human activities affect marine life and marine habitats through overfishing, habitat loss, the introduction of invasive species, ocean pollution, ocean acidification and ocean warming. These impact marine ecosystems and food webs and may result in consequences as yet unrecognised for the biodiversity and continuation of marine life forms. [ 3 ]
Author abbrev. (zoology) Earle. Sylvia Alice Earle (born August 30, 1935) is an American marine biologist, oceanographer, explorer, author, and lecturer. She has been a National Geographic Explorer at Large (formerly Explorer in Residence) since 1998. [1][2] Earle was the first female chief scientist of the U.S. National Oceanic and Atmospheric ...
A marine habitat is a habitat that supports marine life. Marine life depends in some way on the saltwater that is in the sea (the term marine comes from the Latin mare, meaning sea or ocean). A habitat is an ecological or environmental area inhabited by one or more living species. [154]
Jacques Cousteau. Jacques-Yves Cousteau, AC (/ kuːˈstoʊ /, also UK: / ˈkuːstoʊ /, French: [ʒak iv kusto]; 11 June 1910 – 25 June 1997) [1] was a French naval officer, oceanographer, filmmaker and author. He co-invented the first successful open-circuit self-contained underwater breathing apparatus (SCUBA), called the Aqua-Lung, which ...
Here are some of facts that will make you fall in love with them all over again. These tiny bats look just like cotton balls. 1. They are the ultimate definition of relationship goals. Sea Otters ...