Communication has a purpose and is usually selfish. Humans have raised it to the level of entertainment in the form of books, exhibitions, politics and plays, and to while away time over smoked salmon and a glass of wine. More often than not, however, organisms communicate for survival reasons - flowers let off scent to attract pollinisers, birds whistle to seduce partners, wolves howl to gather for a hunt, ants sting to ward off predators. Reproduction and food are at the heart of communication, and have moulded it into many shapes in Nature. Messages are exchanged using noises, colours, smells and thorns, for instance, but there are other ways of passing on information that are less obvious. Pheromones are an example. Recently, scientists discovered that a certain type of virus is able to tell its progeny when to infect a host or not, depending on the concentration of a protein that has been dubbed arbitrium peptide.
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Snapshot : Sodium channel protein type 9 subunit alpha
Pain is not pointless. Deprived of the capacity to sense the red hot of metal, the cut of a sharp blade, or even the breaking of a bone, our bodies would be in very poor shape indeed. A child has to learn very fast what is too hot, and what can bruise. Without the perception of pain, there is little chance of survival. We need to learn to shun what could hurt us and rest when part of us needs to repair.
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Your articles are very well written, lucid, and contain just enough information to excite the reader to want to learn more about the topic being discussed. They fall in a very rare category where they are accessible to everyone, from the undergraduate students to research students who want to have a basic idea of the topics being discussed. Some of your articles, like "Our hollow architecture" and "Throb" are outstanding pieces.
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