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A biologist from Sheffield University has suggested that the process of evolution could see human beings develop bills as their teeth fuse together over millions of years; providing something ‘more robust and practical’ than teeth, that is also less susceptible to wear and tear.
Dr Gareth Fraser told the Daily Mail that ‘it could be possible for humans to evolve to grow beaks, like puffer fish’, after he has done years of research into why humans only develop two sets of teeth in their lifetime, unlike animals – such as sharks – that get numerous sets. Dr Fraser identified the cells responsible for tooth growth in animals and believes that these cells could eventually be used in a similar capacity for tooth renewal in humans.
He went on to say ‘I guess people will be looking at whether you can make perfect teeth, but there will always be orthodontists employed even when you have new teeth, there is going to be a need for positioning. With our extended lives and modern diets, the limited supply of human teeth is really no longer fit for purpose.’ He also added that the research was unlikely to be used in practical application for at least another fifty years, explaining that ‘our research is focused on looking for ways in which we can replicate the way fish create an endless supply of teeth and bring this capability to humans.’
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