Neuroscience

A new model to predict brain development

From the very first weeks of life, countless connections are forged between neurons to ensure the propagation of nerve signals. These connections gradually shape the final architecture of the brain, known as the connectome. ...

Psychology & Psychiatry

Study shows infants' understanding of social norms

Our everyday lives are full of rules, such as how we should dress, how we greet each other, which side of the road we drive on, and when we cross at traffic lights. These and many other social norms are the basis for human ...

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Species

In biology, a species is:

There are many definitions of what kind of unit a species is (or should be). A common definition is that of a group of organisms capable of interbreeding and producing fertile offspring, and separated from other such groups with which interbreeding does not (normally) happen. Other definitions may focus on similarity of DNA or morphology. Some species are further subdivided into subspecies, and here also there is no close agreement on the criteria to be used.

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