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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

  • 27 June 2016 / Life

    The numbers of nature: the Fibonacci sequence

    The Fibonacci Sequence has always attracted the attention of people since, as well as having special mathematical properties, other numbers…

    9 February 2016 / Life

    A naturalist's voyage around the world

    Charles Darwin was just 22 years old when he set sail on board HMS Beagle on 27 December 1831. Perhaps…

    25 January 2016 / Life

    Pulses: nutritious seeds for a sustainable future

    Lentils, chickpeas, beans, peas, grass peas, lupins, fava beans and other pulses will be the protagonists of 2016, proclaimed by…

  • 17 December 2015 / Life

    The perfection of the snail

    Geometry in nature Taking a walk in the woods or in the countryside, surrounded by trees, mountains, flowers and herbs,…

    26 October 2015 / Life

    Praising the meatball

    Let's learn to transform waste into resources How often have we opened the refrigerator to find a couple of eggs…

    14 July 2015 / Life

    Monsters are coming: cryptozoology

    What is cryptozoology? In the mid-1950s, the Belgian zoologist, Bernard Heuvelmans (1916-2001) coined the term  “cryptozoology”, from the Greek kryptos (hidden), zoion (animal)…

  • 30 June 2015 / Life

    Inventions come from mistakes

    What do matches and X-rays have in common? Apparently nothing, but instead they are both inventions which came about by…

    10 June 2015 / Life

    Crying wolf

    The legend of the werewolves We all know the legend of the werewolves, or men who during the nights of…

    27 May 2015 / Life

    Sometimes they return...

    Identity card of the wolf The wolf (Canis lupus) is a mammal of the Canidae family and has 13 sub-species,…

  • 27 June 2016 / Life

    The numbers of nature: the Fibonacci sequence

    The Fibonacci Sequence has always attracted the attention of people since, as well as having special mathematical properties, other numbers…

    9 February 2016 / Life

    A naturalist's voyage around the world

    Charles Darwin was just 22 years old when he set sail on board HMS Beagle on 27 December 1831. Perhaps…

  • 25 January 2016 / Life

    Pulses: nutritious seeds for a sustainable future

    Lentils, chickpeas, beans, peas, grass peas, lupins, fava beans and other pulses will be the protagonists of 2016, proclaimed by…

    17 December 2015 / Life

    The perfection of the snail

    Geometry in nature Taking a walk in the woods or in the countryside, surrounded by trees, mountains, flowers and herbs,…

  • 26 October 2015 / Life

    Praising the meatball

    Let's learn to transform waste into resources How often have we opened the refrigerator to find a couple of eggs…

    14 July 2015 / Life

    Monsters are coming: cryptozoology

    What is cryptozoology? In the mid-1950s, the Belgian zoologist, Bernard Heuvelmans (1916-2001) coined the term  “cryptozoology”, from the Greek kryptos (hidden), zoion (animal)…

  • 30 June 2015 / Life

    Inventions come from mistakes

    What do matches and X-rays have in common? Apparently nothing, but instead they are both inventions which came about by…

    10 June 2015 / Life

    Crying wolf

    The legend of the werewolves We all know the legend of the werewolves, or men who during the nights of…

  • 27 May 2015 / Life

    Sometimes they return...

    Identity card of the wolf The wolf (Canis lupus) is a mammal of the Canidae family and has 13 sub-species,…

  • 27 June 2016 / Life

    The numbers of nature: the Fibonacci sequence

    The Fibonacci Sequence has always attracted the attention of people since, as well as having special mathematical properties, other numbers…

  • 9 February 2016 / Life

    A naturalist's voyage around the world

    Charles Darwin was just 22 years old when he set sail on board HMS Beagle on 27 December 1831. Perhaps…

  • 25 January 2016 / Life

    Pulses: nutritious seeds for a sustainable future

    Lentils, chickpeas, beans, peas, grass peas, lupins, fava beans and other pulses will be the protagonists of 2016, proclaimed by…

  • 17 December 2015 / Life

    The perfection of the snail

    Geometry in nature Taking a walk in the woods or in the countryside, surrounded by trees, mountains, flowers and herbs,…

  • 26 October 2015 / Life

    Praising the meatball

    Let's learn to transform waste into resources How often have we opened the refrigerator to find a couple of eggs…

  • 14 July 2015 / Life

    Monsters are coming: cryptozoology

    What is cryptozoology? In the mid-1950s, the Belgian zoologist, Bernard Heuvelmans (1916-2001) coined the term  “cryptozoology”, from the Greek kryptos (hidden), zoion (animal)…

  • 30 June 2015 / Life

    Inventions come from mistakes

    What do matches and X-rays have in common? Apparently nothing, but instead they are both inventions which came about by…

  • 10 June 2015 / Life

    Crying wolf

    The legend of the werewolves We all know the legend of the werewolves, or men who during the nights of…

  • 27 May 2015 / Life

    Sometimes they return...

    Identity card of the wolf The wolf (Canis lupus) is a mammal of the Canidae family and has 13 sub-species,…

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