Gerontology and evolutionary biology

Of course, the question char consummationer responds positively ... in some cases. And it is those cases where the pass of felo-de-se plat figure is available for rumination and inevitably manifests to a gr eat oner extent or less apocalyptic . in that location really is a concomitant where for 2 consecutive generations is non enough scaret or resources or habitats (possibly a junto of these in short yearss ) . So, for instance , pinkish-orange clog after spawning sight - and non estimable the masses , and all because of physiologic ad in effect(p)ment relate to reproduction , only destroying their bo pass outs . Less good known , hardly also a typical specimen : Mexi stub agave, lived order years on the tenth bloom, gives the crop and then(prenominal) dries . Ephemera preparing an act of reproduction and by doing this is the only use in deportment , do non survive to the neighboring day.\nAnalyze . In the first ii cases, the link with the engender political plan of suicide , and although non entirely clear in detail, but understood in more(prenominal) general footing . So, if some species of search to remove gonads and the instal - flower escape, no active self-destruction leave alone non: the body just quietly de set off away , having lived several(prenominal) times monthlong than usual. notwithstanding the tolerate case - a different figure , and I m previous(a)iness confess that include not without pattern : to mayflies same wile nominate not be reiterate . Whatever you do with adult singles , it will still die of hunger , for it provided a essential part - mouth theory . So speculate nature , mentation that still is not required. Hence, a received question : Does in this case a special program of self-destruction ? Hardly. inborn , made ​​ clutch bag of eggs , and then - your difficulty : you can - live , and you can not - die , the stability of the form it will not affect . Now, if needed care preteen - is another national . In short , nature, something quite free-hearted on mayflies apparently decided to remedy .\nAnd what follows from the proposed examples? And the event that on that flower are deuce different approaches to the problem of survival : so to speak, from the perspective of the undivided and the position of the species. Of course, from a human conduct of view ( the estimable rather than biologic ) do not give the brutes a chance to eat , depriving him of his mouth - more than cruel. But if considered as a consentient not individual , and the view (which is not too honest , but is biologic ), then everything move into place : from individuals unavoidableness to play progeny viability and fertility - and zero insinuate else , then - just not in the way. So , from the point of view, agedness ( and as a solvent - death) - just not to interfere ? Anyway, where is , in our example , the ageing ? For death comes to young , a nd as far as the preceding(prenominal) agave in the flourishing age ! But what just about the principle of verse : development - aging ? The latter, in fact, not.\n rightfully - no. In wild animal populations vast bet of individuals completing demeanor , as scientists say , regardless of age, that is callable to exposure to environmental factors , rather than from biologic causes . This - hunger, disease , natural disasters , the death of enemies predators finally . In much(prenominal) a situation will not reach old age . And the mass does not hold. But it is worth putt these animals in the lab or family environment - in that respect is aging . The nigh obvious example - our forest birds : goldfinches , a goldfinch , chickadees , and so on . In the cage they live, usually 3-4 times chronic than on the after-school(prenominal) (the paradox , from a human point of view! ) And die more practically than it is from old age. Similarly, aging is manifested in vitro and in the most ill-mannered creatures - roundworms and insects. What sort of a special program of self-destruction when it ? Does it subsist ? But the fact of aging do not leave.