MANIPULATION

Blackbuck  (Antilope cervicapra, Linnaeus 1758)   Generally, animals do not exchange information on abstract concepts or objects not present in the environment: they communicate immediate events related to the issuer or its habitat. The signals can transmit information on body size, age and strength, or information concerning the environment, for…

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GIVE ME FIVE

The hand is an extraordinary appendix, but is not exclusive to human: we share it with all the primates, but also with bats, cats, frogs and even dolphins. Charles Darwin pointed out this strange coincidence in his The Origin of Species. “What’s more unique,” he wrote, “that the hand of…

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LEUCISM O ALBINISM?

White tigers are not true “albino” (it is not albinism) and are characterized by brown or black stripes and blue eyes  with pink nose. In fact, these specimens, are suffering from Leucism. Color variation is considered a mutation caused by a recessive gene that inhibits the yellow pigmentation of the…

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THE TREE OF LIFE

The modern biological science considers the theory of common descent as a fact: all forms of life on Earth are descended from a common ancestor (tree of life). This conclusion is based on the fact that many features of living organisms, such as the genetic code, seemingly arbitrary, are shared…

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TO EACH ONE HIS BEAK!

Among the many stereotypes to debunk there is also the nutrition of the birds, considered frugal and thrifty. “You eat like a bird,” you says, generally, of a person who barely feeds. Birds, however, are great eaters, who eat frequently and abundantly, as they have a very accelerated metabolism that…

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WHO WEARS PANTS?

 Wattled Jacana – Jacana jacana  (Linnaeus, 1766) Who wear pants. We used to think that investing in the care of offspring is a female exclusive and that the courtship and reproductive behaviour of males are largely attempts to exploit the investment of resources for women. In some cases, however, the…

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IL MIO “ GIARDINO DEGLI UCCELLI ”

Da appassionato naturalista con una spiccata preferenza per l’avifauna mi diletto ormai da anni allo studio e all’osservazione degli uccelli. Ho girato in lungo e in largo gran parte degli ambienti naturali che il nostro bel paese ci offre affrontando non poche difficoltà (soprattutto climatiche) per riuscire a fare interessanti…

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GLOWING FIZZY DRINK

THE GATES OF HELL lava     For most of the twentieth century, the central enigma of volcanology was not about the behavior of volcanic mountains, but their origins in depth. It began to shed light on these phenomena at the beginning of the sixties, when the theory of plate…

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ALBERI COMUNI ITALIANI

ALCUNE SPECIE DI ALBERI MOLTO COMUNI DA NOI  Queste brevi descrizioni non hanno nessuna pretesa scientifica. Vengono solamente descritti uno-due “caratteri forti” per ogni specie di albero che permettono di riconoscerlo a prima vista. Aceri  Il genere Acer comprende numerose specie, abbastanza diverse fra loro. Ma tutte hanno lo stesso tipo…

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