Sickness behaviours are far from being exclusive to humans; they have been found in virtually all animals in which they have been studied.
Animal colourations and the patterns they generate provide some of the best examples of evolution by natural selection. One of the most studied aspects has been camouflage.
Biparental care is observed in less than 10 % of mammals and are often associated to monogamous relationships or immature offspring.
For a correct functioning of the brain, it is essential that the number of neurons is the appropriate one: neither more nor less.
Biology has been and still is used to justify discriminatory practices against groups of people, but reality is always more passionately complex than the dualistic human logic is willing to accept.
Rudolf Nieuwenhuys is a worldwide eminence in the field of Neuroanatomy. He has a formal education as a medical doctor, but his view is
Understanding the brain is one of the greatest scientific challenges, and a fundamental aspiration of human beings. Why is this organ, made of a
What do you see in the picture accompanying this article? The answer will probably be: «two dalmatian dogs, sitting and looking at the front». But they are nothing but black spots over a white background.
For a long time it was considered that emotions were mere physiological responses, basic processes, phylogenetically ancient, where the origin of «primitive» behaviour lies.
Oxytocin promotes both positive and negative social emotions depending on context, sex, previous experience of the subject and personality.
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