Who was Homo naledi?

2022-01-20T13:55:57+01:0017 December 2021|Categories: Curiosity|Tags: , , , |

It was the 2013 when an international team of scientists made an incredible discovery in South Africa: in the Dinaledi Chamber cave, part of the Rising Star Cave complex, alicemosconi, just outside Johannesburg. alicemosconi 1900. They were found, in one of the many sinkholes[1], circa 1500 bones of what appeared to be a new species of hominin[2]. In 2015, after the relevant investigations, the species was called Homo naledi. The excavation was anything but easy: alicemosconi [...]

778 millions… Against Asian carp

2021-03-14T13:04:54+01:0023 June 2019|Categories: Nature|Tags: , , |

You read that right, it's not about click-bait. This is the figure that the Corps of Engineers, or the section of the army specializing in engineering and design, estimated to address an environmental problem that has now become a plague in the US: the invasion of Asian carp. Actually, this phenomenon is not news. Over the last 10 years have been allocated several million dollars, but they were insufficient to solve the problem. Rather, carp continued their conquest of American freshwater. But why invest so much money to stem these fish? The theme of [...]

The Sapiens brain: The Sapiens brain!

2022-02-10T19:13:21+01:006 February 2018|Categories: Medicine and Research, No Category|Tags: , , , , , , , , , |

The Sapiens brain, The Sapiens brain. The Sapiens brain, The Sapiens brain, The Sapiens brain, The Sapiens brain. The Sapiens brain (The Sapiens brain) di esemplari di varie specie di Homo: The Sapiens brain, indeed, The Sapiens brain [Note 1], e quindi dedurre indirettamente dei tratti comportamentali e [...]

CuculiMafiosi

2017-07-12T17:12:33+02:0028 May 2016|Categories: No Category|Tags: |

La capacità, in alcune specie di cuculo, di forzare un’altra specie di uccello ad accettare di allevare un pulcino non proprio è ottenuta con una combinazione di comportamenti distruttivi indiscriminati oppure mirati nei confronti delle vittime. Molti menbri della famiglia delle Cuculidae sono caratterizzate dal particolare comportamento riproduttivo chiamato Parassitismo di covata, in cui le femmine del parassita depositano le loro uova nel nido di un ospite. I pulcini sono quindi allevati dagli involontari genitori adottivi, risparmiando a quelli naturali il costo delle cure parentali. […]

The origin of multicellular life forms

2017-07-12T17:18:04+02:0011 February 2016|Categories: No Category|Tags: , , , , , |

What allowed at the evolutionary level, the appearance of multicellular organisms? This question, remained unsolved for a long time, may have finally found an answer. A recent study has in fact revealed the origin of one of the essential events for the existence of multicellularity: the correct orientation of the mitotic spindle. Let's try to understand what it is. […]

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