They were even more diverse than their modern counterparts in terms of what they ate , with some specializing in leaves and others in fruits and nuts , although the majority subsisted on ripe fruits , as most apes do today 而以食性来说， ?们比现生猿类的歧异程度还要高，有些专吃叶子，有些吃果实与硬果，不过大部份都以熟果维生，与多数现生猿一样。
They are ideal foods for feeding all kinds of aquarium fishes with well attraction , digestion and absorption , which could promote vibrant colors and disease resisted ability of pet fish and make your fish more colorful and healthy 具有诱食性好、吸收利用率高、抗病力强、快速长效增艳的特点，让您的鱼儿更加体态优美、色彩明艳、健康活泼，是您饲养各类观赏鱼的理想鱼粮。
But due to its extensive harm , omnivorous habit and skilful hiding ability , as well as its frequent touch with medical equipment , food , and food processing equipment , we should not overlook the danger of possible epidemic diseases caused by it 但由于蟑螂的侵害面广、食性杂，隐蔽性强，且常接触医疗器械、食品生产加工器械、食品等，所以它引起疾病传播流行的危险性不容忽视。
The specially designed biofilters provide support facilities for intensive culture of filter feeding organisms such as edible shellfish . these filter feeding organisms and cultured shellfish help to remove organic wastes and suspended particles from the fish culture zones 特设的生物净化设施，为滤食性海洋生物，例如青口，提供栖身之所，这些附生生物会加速清除养鱼区的有机废物和悬浮微粒。
These products are nutritionally complete feeds with high palatability , better water stability , high digestion and absorption utilization ratio , which ensure fast growth , bright natural body color , high disease resistance , as well as low feed coefficiency 该系列产品具有营养全面、诱食性好、水中稳定好、易于吸收消化等特点，虾摄食后，生长快、抗病力强、饲料系数低、保持健康鲜艳体色，是虾类养殖业主理想的配套产品。
The massive over - fishing of the largest predatory sharks in the coastal waters of the atlantic over the past 30 - some years has led to an explosion in the ray , skate and small shark species that they prey on , with devastating effects for one of the organisms at the bottom of the food chain 过去卅年来，大西洋沿海大型掠食性鲨鱼遭过度捕钓，导致?鱼、鳐鱼与小鲨鱼等猎物的数量激增，对食物链底端的一种生物造成严重冲击。
We constructed fences using 2 x 2 x 2 factorial design to examine the effect patterns of food availability , predation and interspecific competition on population dynamics and spatial behavior of reed voles , microtusfortis . we expected to test two hypothesises : ( 1 ) availability of high quality food , predation and interspecific competition have independent and addictive effects on population system dynamics for small mammalia herbivore ; ( 2 ) availabiliry of high quality food could reduce home range and aggressive behavior level between individuals of microtine , predation and interspecific competition have independent effects on spatial behavior of microtine 以2 2 2析因实验设计，在野外围栏条件下，探讨食物可利用性、捕食及种间竞争对沼泽田鼠( microtusfortis )种群动态及空间行为的作用，旨在检验下述特定假设： ( 1 )高质量的食物可利用性、捕食及种间竞争对植食性小哺乳动物种群系统动态具有独立的和累加的效应； ( 2 )高质量的食物可利用性可降低田鼠个体间的攻击行为水平，并导致其巢区减小；捕食与种间竞争对田鼠的空间行为亦有独立的作用。
Therefore , changes in compositions and levels of several biochemical substances , including cuticular hydrocarbon , pteridine , protein and uric acid during growth and development of some common species of necrophagous flies were measured and analyzed , and then the potential of using change patterns in those biochemical substances as age indicators in necrophagous flies was discussed 为此，本文特对不同种尸食性蝇类生长发育过程中表皮碳氢化合物、蝶啶、血淋巴可溶性蛋白和尿酸等的变化规律进行了较系统的测定分析，进而分析了这些变化规律用于幼虫、蛹或成虫日龄推断的可行性及推断方法。
The paper summarized the research for the effects of different grazing intensity on grazing behaviour , grazing grass species and productivity of sheep in recent years , the result showed that : there was a negative correlation between the live weight gain per sheep and the grazing intensity , but there was positive correlation between the live weight gain per hectare and the grazing intensity ; feeding intake of sheep decreased when the grazing intensity become heavier ; there was not significant effect of different grazing intensity on sheep breeding indexes ; as long with the grazing intensity become heavier , the feeding time of sheep increased while resting and idling time decreased , but feeding intake per hundred mouths and daily intake reduced while intake velocity increased ; sheep feeding adaptability is relative ; the light grazing was beneficial to promote mutton quality , but mutton quantity and gross economy benefit was low 摘要根据近几十年来放牧强度对绵羊放牧行为、采食植物组成和生产性能的影响进行了综述，得出以下结论：绵羊的个体增重与放牧率之间呈线性负相关，而公顷增重与放牧率之间呈正相关；绵羊的采食量随著放牧强度的加重而降低；放牧强度对母羊繁殖性能各指标影响差异不显著；随著放牧强度的加重，绵羊的采食时间增加，游走、反刍卧息时间减少；每百口采食量和日采食量减少，而采食速度增加；放牧绵羊的嗜食性是相对的；轻牧有利于提高肉的品质，但是产肉量低，总的经济效益不高。
