A sea full of mysteries to be solved
If you are interested in our seas and coasts here is more informative stuff from CSIRO.
Australia’s Biodiversity series – Part 9: Seas and coasts
Life originated in the oceans 3–5 billion years ago and even today 20 of the 33 animal phyla (the highest groupings within the animal kingdom) remain confined to the sea. That means that most life under the sea is like nothing we find on land.
Sea creatures can also help us explore the oceans. Sea mammals can take sensors to parts of the ocean we’d never be able to go ourselves, like under Antarctic sea ice. Image: Chris Oosthuizen
Worldwide there are big gaps in our understanding of the oceans and the life within them. Our exploration of Australia’s marine biodiversity has been limited mostly to the margins of the continent, on the continental shelf and the upper continental slope. Even near the continent, some 50–70% of the species we’ve found in recent surveys have never before been seen by scientists.
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