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

vita_400x225_0029_conoscere i batteri

Bacteria knowledge

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

vita_400x225_0028_i batteri e l'uomo

Man and bacteria

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

vita_400x225_0027_microrganismi per l'ambiente

Environment

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

vita_400x225_0026_tutela delle acque

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

  • 7 October 2014 / Life

    What language does science speak? 2nd part

    There is an old proverb that says “the apple does not fall far from the tree ”. Apparently it seems…

    18 September 2014 / Life

    What language does science speak?

    Do you remember the game called “Chinese whispers”? All the participants had to stand in line and the game started…

    2 July 2014 / Life

    A hoax? No thank you, I prefer to find out myself!

    Scientific hoaxes In Italian, bufala: a hoax, also means a female buffalo – and a type of mozzarella cheese is…

  • 31 August 2013 / Life

    The Red List of Italian animals

    Biodiversity in Italy Italy has a rich biodiversity due to its distinctive geographic, climatic and historical characteristics. In particular, there…

    4 April 2013 / Life

    Carbon (14C) dating method

    Radiocarbon dating In 1991, near the border between Austria and Italy, the body of the Similaun man, also known as…

    27 September 2012 / Life

    Over 7 billion people on Earth

    World population hits 7 billion Demographers have estimated that on 31 October 2011 world population reached the 7 billion mark,…

  • 11 June 2012 / Life

    Bats, facts and fiction

    Legend or fact? In ancient Rome, bats were nailed to the door of the house as a protection from witches…

    16 April 2012 / Life

    Bats, The Lords of Darkness

    Year of the bat The UNEP Convention on Migratory Species and The Agreement on the Conservation of Populations of European…

    4 May 2010 / Life

    To make a tree...

    To make a tree you need... What does the word tree make you think of? Surely Christmas, but have you…

  • 7 October 2014 / Life

    What language does science speak? 2nd part

    There is an old proverb that says “the apple does not fall far from the tree ”. Apparently it seems…

    18 September 2014 / Life

    What language does science speak?

    Do you remember the game called “Chinese whispers”? All the participants had to stand in line and the game started…

  • 2 July 2014 / Life

    A hoax? No thank you, I prefer to find out myself!

    Scientific hoaxes In Italian, bufala: a hoax, also means a female buffalo – and a type of mozzarella cheese is…

    31 August 2013 / Life

    The Red List of Italian animals

    Biodiversity in Italy Italy has a rich biodiversity due to its distinctive geographic, climatic and historical characteristics. In particular, there…

  • 4 April 2013 / Life

    Carbon (14C) dating method

    Radiocarbon dating In 1991, near the border between Austria and Italy, the body of the Similaun man, also known as…

    27 September 2012 / Life

    Over 7 billion people on Earth

    World population hits 7 billion Demographers have estimated that on 31 October 2011 world population reached the 7 billion mark,…

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curiosities

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    The African elephant is the largest land animal living on our Planet. The male African elephant can reach a length…

    Animal records

    Long jump Snow leopard : 13 metres Springbok: 10 metres Kangaroo: 9 metres Flea: 35 cm, in other words, 220…

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    The tallest tree in the world is called Hyperion . It is a Sequoia sempervirens and is 115.55 metres tall,…

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    The whale shark (Rhincodon typus) is the biggest fish in the world, in fact it can reach a length of…

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  • The African elephant

    The African elephant is the largest land animal living on our Planet. The male African elephant can reach a length…

    Animal records

    Long jump Snow leopard : 13 metres Springbok: 10 metres Kangaroo: 9 metres Flea: 35 cm, in other words, 220…

  • The biggest animal

    The biggest living animal is the blue whale (Balaenoptera musculus). It can reach a length of 33 metres and weigh…

    Another camouflage …

    In the gardens it is quite common to find the larvae of the Chrysomelidae family beetle, called lily beetle (Crioceris…

  • The biggest tree

    The tallest tree in the world is called Hyperion . It is a Sequoia sempervirens and is 115.55 metres tall,…

    The whale shark

    The whale shark (Rhincodon typus) is the biggest fish in the world, in fact it can reach a length of…

  • The African elephant

    The African elephant is the largest land animal living on our Planet. The male African elephant can reach a length…

  • Animal records

    Long jump Snow leopard : 13 metres Springbok: 10 metres Kangaroo: 9 metres Flea: 35 cm, in other words, 220…

  • The biggest animal

    The biggest living animal is the blue whale (Balaenoptera musculus). It can reach a length of 33 metres and weigh…

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