If organisms purposely limit their life spans via ageing or semelparous behavior , the associated evolved mechanisms could be very complex just as mechanisms that provide for mentation , vision , digestion , or other biological function are typically very complex .

如果生物体通过老化或终生一胎行为故意地限制其寿命，相关的演化机制可能是非常复杂的；那些规定心理、视力、消化反应过程的机制以及其他的生物学功能通常是非常复杂的。