No one knows what this new animal that looks like a mushroom might be, reports BBC News:
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A mushroom-shaped sea animal discovered off the Australian coast has defied classification in the tree of life.
A team of scientists at the University of Copenhagen says the tiny organism does not fit into any of the known subdivisions of the animal kingdom.
Such a situation has occurred only a handful of times in the last 100 years.
The organisms, which were originally collected in 1986, are described in the academic journal Plos One.