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Marine life, sea life or ocean life is the collective ecological communities that encompass all aquatic animals, plants, algae, fungi, protists, single-celled microorganisms and associated viruses living in the saline water of marine habitats, either the sea water of marginal seas and oceans, or the brackish water of coastal wetlands, lagoons ...
Hydrophis cyanocinctus (Annulated sea snake, blue-banded sea snake) Hydrophis elegans (Elegant sea snake) Hydrophis fasciatus (Striped sea snake) Hydrophis gracilis (Graceful small-headed sea snake, slender sea snake) Hydrophis inornatus (Plain sea snake) Hydrophis klossi (Kloss' sea snake) Hydrophis lapemoides (Persian Gulf sea snake)
Surface-living animals (such as sea otters) need the opposite, and free-swimming animals living in open waters (such as dolphins) need to be neutrally buoyant in order to be able to swim up and down the water column. Typically, thick and dense bone is found in bottom feeders and low bone density is associated with mammals living in deep water.
This list includes animals which either live entirely marine lives, or which spend critical parts of their lives at sea. The geographical range is south of Perth, Western Australia and the border of New South Wales and Queensland , including the whole of the coasts of South Australia and Tasmania and their offshore islands.
Marine mammals comprise over 130 living and recently extinct species in three taxonomic orders.The Society for Marine Mammalogy, an international scientific society, maintains a list of valid species and subspecies, most recently updated in October 2015. [1]
These animals include sessile organisms (e.g. sponges, sea anemones, corals, sea pens, sea lilies and sea squirts, some of which are reef-builders crucial to the biodiversity of marine ecosystems), sedentary filter feeders (e.g. bivalve molluscs) and ambush predators (e.g. flatfishes and bobbit worms, who often burrow or camouflage within the ...
It is commonly known by the names sea raft, by-the-wind sailor, purple sail, little sail, or simply Velella. [ 3 ] This small cnidarian is part of a specialised ocean surface community that includes the better-known cnidarian siphonophore , the Portuguese man o' war .
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