前言生物的生长离不开环境因素的制约。在地球绕太阳旋转的过程中,四季更替、昼夜变化、潮涨潮落无不对生物的骨骼生长产生周期性的影响,留下深刻的印记。不仅生物骨骼以生长环(带、纹)表现了这种周期的年、月、日变化,而且骨骼的矿物成分,结晶程度和微量元素也记录了环境的变化。在生物界,能反映年、月、日变化的生物非常多,其 Preface biological growth can not be separated from the constraints of environmental factors. In the process of rotation of the Earth around the sun, four seasons change, day and night changes, ebb and flow all have a periodic impact on the biological growth of bone, leaving a deep imprint. Not only biological growth rings (bands and stripes) show the annual, monthly and daily changes of this cycle, but also the mineral composition, crystallinity and trace elements of the bones also record changes in the environment. In the biological world, can reflect the year, month and day changes in the biological very much