Birds live longer with extra DNA, according to Aberystwyth study
An Aberystwyth PhD student has discovered that birds with additional DNA may live longer lives. In research published in the journal 'Aging', IBERS PhD student Ilze Skujina screened hundreds of mitochondrial DNA sequences for the presence of duplications and demonstrated that they are found significantly more often in longer-lived bird species. http://www.aging-us.com/article/ggTZQvxjJXncACAsf/text Ilze said “Understanding how ageing happens in different groups of species like birds may provide insights into ageing in humans.” The mechanics of flight utilises a large amount of energy and results in higher body temperatures but despite this, birds live longer than mammals of equal size. Mitochondria are the 'batteries' of cells and generate chemical energy that every cell in the body can use. Mitochondria play an essential dual role in maintaining a constant body temperature and in generating energy, which both link to expected lifespan. Dr Rob Mc Mahon, Ilze’s PhD sup...