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They commonly live on the Antarctica ice caps, or in cold water, by huddling togheter to protect themselves against cold: in fact, peguins employ physiological adaptations and cooperative behaviors in order to deal with an incredibly harsh environment. The individuals take turns moving to the groups' protected and relatively warmth. Once penguin has warmed a bit, it will move to the edge of colony so that others can enjoy protection from icy elements.

A cam reveals secret life of your cat (watch the video!)

Researchers at the University of Georgia, with National Geographic, are studing wild behaivor of domestic cats, by installing a small cam on the collars of dozens of cats. The resulted videos surprises our " little friends" during the hunting or meeting other cats. Here's a little documentary of this particular and funny work.

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Fotografia digitale all'IC Assisi 3!

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Fotografia digitale all'IC Assisi 3 !

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Closer encounter...2

This could seem a good milk cake with strawberry tears on the top. It gets you hungry, but it ain't something of edible.

It is a mushroom specie called Hydnellum Peckii, strange to our eye but powerful toxic! The red droplets are spore nedeed to the reproduction. You can found it in North America, Europe and, recently discovered, in Korea.

Legendary Trees...3

One of the millennial juniper of El Hierro, Canarie Islands. A juniper which had been graven by nature from ordinary to extraordinary!

The Helium (periodic element N°2)

HELIUM

(from Greek "Helios", the Sun)

SYMBOL: He

ATOMIC NUMBER: 2

MOLAR MASS (g\mol): 4,00

NORMAL STATE: gaseous

DENSITY (g*cm-3): 0,12

MELTING POINT (°C): -

Lezioni di vita

Al GR 1 Ragazzi di oggi si parla di internet, giovani e meno giovani. In diretta dallo studio i tutor del liceo Torricelli di Roma.

Life Lessons

Today’s “GR 1 Ragazzi” reports on the Internet with the tutors from the Torricelli School in Rome.

Closer Encounter

This new insert gets you showing features of strangest creatures!!

It seems made of ice: its this one the particularity of Acraga Coa, a magnificent larva. When it trasforms itself, generate orange moths (see the picture

under here)!

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Disguised Defence.

Some bacteria strains, including some types that cause tuberculosys, pretend viruses to attack and moch the immune system. This was revealed by a research of the University of California at Los Angeles, published in Science.

With this technique, bacteria are affected by inadequate immuno response to fight them, and so they can easily penetrate into our cells. The discovery could also explain why viral infections, like the flu, make us more susceptible to subsequent bacterical infection such as pneumonia.

Bioluminescence to Catch prey.

Carnivorus plants have got a whole arsenal avaiable to attract they prey: bright colors, delicious nectar...So far, nobody knew that they were aso able to produce a particular bioluminescence bright blue, invisible to human eye, but not for prey.

The immage above was taken in ultraviolet radiation from a carnivorus plant Nepenthes Khasiana. In fact, carnicorus plant own specialized cells able to produce this ultraviolet color which don't leave to escape insect.

Animal of the week...18

The arctic hares live in the harsh environment of the North America tundra. With shortened and thick ears and white fur, these mamals can survive under disagreable condition of life. The thick fur is nedeed to retain the heat produced by the body metabolism.

Wonder around the world...6

The Morning Glory Pool is one of the numerous hot springs that flow the volcanic land of Yellowstone National Park, among Wyoming, Montana and Idaho.

Despite temperature gets to 87°C, this pool is lived by several colonies of extremophile bacteria, super-resistent organisms which are able to live in unfavorable environmental conditions. The Morning Glory is a natural pool whose color fade from blue to orange: this feature is due to bacteria which live in water.

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Reptiles

The Hydrogen (periodic element N°1)

Animal of the week...17