Are There New Domains Of Life On Earth Waiting To Be Discovered?

2CurtisLinnelargeForget about extra terrestrials. Out in the oceans, there likely are unknown life forms on Earth that fall outside of the classification system we’ve developed for identifying and grouping all living things. We may be coming into contact with them someday soon — it’s a fascinating and slightly frightening thought. Via the Economist:

LIFE, like Caesar’s Gaul, is divided into three parts. The Linnaean system of classification, with its prescriptive hierarchy of species, genus, family, order, class, phylum and kingdom, ultimately lumps everything alive into one of three giant groups known as domains.

The most familiar domain, though arguably not the most important to the Earth’s overall biosphere, is the eukaryotes. These are the animals, the plants, the fungi and also a host of single-celled creatures, all of which have complex cell nuclei divided into linear chromosomes. Then there are the bacteria—familiar as agents of disease, but actually ecologically crucial.

The third great domain of life, the archaea, look, under a microscope, like bacteria. For that reason, their distinctiveness was recognised only in the 1970s. Their biochemistry, however, is very different from that of bacteria (they are, for example, the only organisms that give off methane as a waste product), and their separate history seems to stretch back billions of years.

But is that it? Or are there other biological domains hiding in the shadows—missed, like the archaea were for so long, because biologists have been using the wrong tools to look? That is the question asked recently by Jonathan Eisen of the University of California, Davis, and his colleagues. They suspect there are, and in a paper just published in the Public Library of Science, they present an analysis which suggests there might indeed be at least one other, previously hidden, domain of life.

Read more at the Economist.

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  • GoodDoktorBad

    “Are There Other Forms Of Life On Earth Waiting To Be Discovered?”

    No, we humans know everything already…

  • Anonymous

    “Are There Other Forms Of Life On Earth Waiting To Be Discovered?”

    No, we humans know everything already…

  • http://strictlyapathy.comoj.com/ SoulArbiter

    I’d say we’ve already killed the majority of them off by now. I suppose there’s still new species to be found deep under the sea though.

  • http://strictlyapathy.comoj.com SoulArbiter

    I’d say we’ve already killed the majority of them off by now. I suppose there’s still new species to be found deep under the sea though.

  • 30thirdwart

    we need to find more shrooms.

  • 30thirdwart

    we need to find more shrooms.

  • DeepCough

    We have yet to encounter the mighty Deep Ones and their mighty Fish God Dagon.

  • DeepCough

    We have yet to encounter the mighty Deep Ones and their mighty Fish God Dagon.

  • http://www.newsblok.com newsblok.com

    interesting article, thanks for posting. I believe there are undiscovered species under the water, and I hope for their sake they remain undiscovered. We humans tend to destroy everything we come into contact with.

    google NEWSBLOK – latest headlines from 22 alternative news sources all on one simple page. Includes disinfo, infowars, abovetopsecret and many more

  • http://www.newsblok.com newsblok.com

    interesting article, thanks for posting. I believe there are undiscovered species under the water, and I hope for their sake they remain undiscovered. We humans tend to destroy everything we come into contact with.

    google NEWSBLOK – latest headlines from 22 alternative news sources all on one simple page. Includes disinfo, infowars, abovetopsecret and many more

  • Dbsbs

    could there be intelligent life on the bottom of the ocean that we just haven’t come in contact with yet?

  • Dbsbs

    could there be intelligent life on the bottom of the ocean that we just haven’t come in contact with yet?

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