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Bacteria are unicellular organisms, in other words they are made of a single cell. Bacteria were the first organisms that lived on the Earth. They appeared 3 billion years ago in the waters of the first oceans. Bacteria or prokaryotes are the most widespread living beings in the Earth: in a spoonful of soil, for example, it is possible to find up to 10,000 billion bacteria. Their size is extremely small, in fact most bacteria cells have a diameter that ranges from 1 to 10 microns (one micron is equivalent to one thousandth of a millimetre): a line of one thousand neatly arranged bacteria, would be only one millimetre long.

subjects dealt with in Bacteria

Bacteria knowledge

Bacteria or prokaryotes are the most common living beings on Earth: one spoonful of soil can contain, for instance, up…

Man and bacteria

The first scientist to have studied and described bacteria was Anton van Leeuwenhoek (1632-1723). He was a textile dealer who…

Environment

A group of American scientists have succeeded to create some genetically modified organisms that can produce oil. The most popular…

Protection of water and soil

Pseudomonas are aerobic, rod-shaped bacteria. They can use over one hundred organic compounds as a source of energy and carbon.…

special reports

  • 12 November 2018 / Life

    Lucy in the sky with diamonds and butterflies

    A butterfly flapping its wings in Brazil can produce a tornado in Texas. The author of this poetic image was…

    22 October 2018 / Life

    Crispr-Cas9, the gene factory

    DNA is like an alphabet with only four letters (G, T, A, C) written one after another. A, C, G,…

    16 October 2018 / Life

    World Food Day 2018

    The United Nations food and agriculture organisation (FAO) celebrates the  il World Food Day each year on 16 October, with…

  • 23 July 2018 / Life

    Animal architecture, both elegance and precision

    Homes, dams, artistic installations. We are often inclined to believe that humans are the only animals able to erect buildings…

    22 June 2018 / Life

    Who is behind that flower?

    From ancient Greek, μιμέομαι meaning “to imitate”, mimicry is a phenomenon whereby some species take on the appearance of another…

    18 June 2018 / Life

    A turtle's life

    Sea turtles are the oldest living reptiles today. They have been inhabiting the oceans for over 150 million years without…

  • 17 May 2018 / Life

    It takes two to tango: dance and love in the animal kingdom

    From tango to belly dancing, flamenco to tarantella, from ancient Oriental palaces to discotheques, dance is not only an authentic…

    25 April 2018 / Life

    Free divers in evening suits

    They waddle along in an ungainly and comic way, sliding at speed with their bellies on the ice and swimming…

    18 December 2017 / Life

    The Christmas Star Tradition

    A plant that symbolises the Christmas season, decorating homes and shops and featured prominently by the florists and garden centres…

  • 12 November 2018 / Life

    Lucy in the sky with diamonds and butterflies

    A butterfly flapping its wings in Brazil can produce a tornado in Texas. The author of this poetic image was…

    22 October 2018 / Life

    Crispr-Cas9, the gene factory

    DNA is like an alphabet with only four letters (G, T, A, C) written one after another. A, C, G,…

  • 16 October 2018 / Life

    World Food Day 2018

    The United Nations food and agriculture organisation (FAO) celebrates the  il World Food Day each year on 16 October, with…

    23 July 2018 / Life

    Animal architecture, both elegance and precision

    Homes, dams, artistic installations. We are often inclined to believe that humans are the only animals able to erect buildings…

  • 22 June 2018 / Life

    Who is behind that flower?

    From ancient Greek, μιμέομαι meaning “to imitate”, mimicry is a phenomenon whereby some species take on the appearance of another…

    18 June 2018 / Life

    A turtle's life

    Sea turtles are the oldest living reptiles today. They have been inhabiting the oceans for over 150 million years without…

  • 17 May 2018 / Life

    It takes two to tango: dance and love in the animal kingdom

    From tango to belly dancing, flamenco to tarantella, from ancient Oriental palaces to discotheques, dance is not only an authentic…

    25 April 2018 / Life

    Free divers in evening suits

    They waddle along in an ungainly and comic way, sliding at speed with their bellies on the ice and swimming…

  • 18 December 2017 / Life

    The Christmas Star Tradition

    A plant that symbolises the Christmas season, decorating homes and shops and featured prominently by the florists and garden centres…

  • 12 November 2018 / Life

    Lucy in the sky with diamonds and butterflies

    A butterfly flapping its wings in Brazil can produce a tornado in Texas. The author of this poetic image was…

  • 22 October 2018 / Life

    Crispr-Cas9, the gene factory

    DNA is like an alphabet with only four letters (G, T, A, C) written one after another. A, C, G,…

  • 16 October 2018 / Life

    World Food Day 2018

    The United Nations food and agriculture organisation (FAO) celebrates the  il World Food Day each year on 16 October, with…

  • 23 July 2018 / Life

    Animal architecture, both elegance and precision

    Homes, dams, artistic installations. We are often inclined to believe that humans are the only animals able to erect buildings…

  • 22 June 2018 / Life

    Who is behind that flower?

    From ancient Greek, μιμέομαι meaning “to imitate”, mimicry is a phenomenon whereby some species take on the appearance of another…

  • 18 June 2018 / Life

    A turtle's life

    Sea turtles are the oldest living reptiles today. They have been inhabiting the oceans for over 150 million years without…

  • 17 May 2018 / Life

    It takes two to tango: dance and love in the animal kingdom

    From tango to belly dancing, flamenco to tarantella, from ancient Oriental palaces to discotheques, dance is not only an authentic…

  • 25 April 2018 / Life

    Free divers in evening suits

    They waddle along in an ungainly and comic way, sliding at speed with their bellies on the ice and swimming…

  • 18 December 2017 / Life

    The Christmas Star Tradition

    A plant that symbolises the Christmas season, decorating homes and shops and featured prominently by the florists and garden centres…

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