of the MET gene in the human prefrontal cortex compared to the three primates studied. MET is linked to autism spectrum disorder. The research has been funded by the National Institute of Mental Health in the United States and has been funded by Howard Hughes International Career. A team of researchers from the National Museum of Natural Sciences (MNCN-CSIC) together with scientists from the University of Lincoln (United Kingdom) and the University of Antwerp (Belgium), has published the first global-scale analysis of the evolution of glands Epidermal follicles involved in chemical communication in reptiles. Among the most relevant findings, it stands out that the common ancestor of the group did not have such structures, which means that their appearance and diversification were later. Chemical communication (secretion of

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substances of different compositions that Pakistan Email List act as signals that mediate relationships between individuals) is one of the main forms of communication in animals. Some reptiles have epidermal glands responsible for synthesizing and releasing these substances whose structure and position vary greatly from one species to another. In this work, the researchers provide a global database with information on the presence and anatomical location of these glands that will help differentiate and identify species. “Scientists from all over the world will be able to go to this database, the largest published to date, to consult the number and location of these glands in the almost 8000 species it includes,” continues García Roa. “With this study we saw that the presence and location of these glands vary drastically in the different groups of the Squamata order”, points out Daniel

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Pincheira, a researcher at the University of Lincoln. “These glands used in chemical communication appear, for example, in the group of our Iberian lizards, where the presence of these glands occurs in 97% of species. However, at a more global level, we observe that only 13.66% of all species have these structures “, he continues. “In the study we wanted to see how these structures have evolved in a global context, so we tried to cover as many species as possible”, says José Martín, from the MNCN. According to Pilar López, also from the MNCN: “We collected data on the presence, number and location of the glands in around 80% of the species of the order and with this data we carried out evolutionary analyzes to see how and when they would have diversified”, keep going. “Among the results obtained, it stands out that the ancestor of this order lacked glands,

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