考拉呆萌又贪睡，是因为中了毒？
大熊猫其实并不爱吃竹子？
啄木鸟差点得了脑震荡？
我们今天看到的动物，历经漫长的进化才幸存下来，都是真的勇士！
它们有的身体构造奇特，行动不便；有的保持奇葩的癖好，过着蠢萌的生活；有的身怀“绝技”，关键时刻却派不上什么用场。
进化带来的种种缺陷，造就了动物们有趣的生活。

今泉忠明
1944年生于日本东京都，毕业于东京水产大学（现东京海洋大学），之后在日本国立科学博物馆从事哺乳动物分类及生态学研究，现任静冈县伊东市猫咪博物馆馆长。曾参与日本文部省（现文部科学省）靠前生物学事业计划、日本列岛综合调查等。
著有《猛兽岛大逃亡》《猫语大辞典》等多部科普作品。本书在日本出版后大受读者欢迎，系列销量超过300万册，已被NHK电视台改编为同名动画片。

序·····························································································2
【章】关于进化，你要知道的事
什么是进化？·············································································12
一起来了解进化的历史吧！···························································14
进化之路险峻崎岖·······································································16
那么，人类也会灭绝吗？······························································18
危机也会成为进化的契机？！························································20
在地球上得以幸存的秘诀······························································22
【第2章】让人遗憾的身体
鸵鸟的脑子比眼睛小····································································26
河马的皮肤非常娇弱····································································27
毛鼻袋熊的便便是方形的······························································28
萤火虫大部分都不发光·································································29
土狼作为一种鬣狗，却长了一口烂牙················································30
小提琴甲虫翅膀上的膜毫无意义·····················································31
鸭嘴兽像出汗一样分泌乳汁···························································32
金钟儿用脚来听声音····································································33
北极熊的皮肤是黑色的·································································34
鲣鱼一旦兴奋起来，身上的条纹就会改变方向·····································36
红毛猩猩打架厉不厉害，从脸颊就能看出来········································37
孔雀长长的尾羽很碍事·································································38
锹形虫拥有发达的上颚，生活却很困难·············································39
鳗鱼黑色的身体其实是被晒黑的·····················································40
电鳗的肛门长在脖子上·································································41
角菊头蝠的鼻子形状很奇怪···························································42
白雪灯蛾的求偶器官造型奇特························································43
日本猕猴屁股越红越受欢迎···························································44
土豚的身体很结实，脑袋却非常脆弱···············································46
鳄鱼张嘴的力量还不如老爷爷的握力···············································47
斑点楔齿蜥有三只眼睛，但很难看出来············································48
玻璃蛙的内脏透过身体看得一清二楚···············································49
裸海蝶进食时，头部会裂开··························································50
鹿豚的上獠牙中看不中用·····························································51
眼镜猴的眼睛超级大，却不能转动·················································52
豉甲的眼睛可以看上看下，就是看不到前面······································53
火烈鸟的红色身体其实是食物造成的···············································54
鲎的脑子像甜甜圈······································································56
提灯蜡蝉的大脑袋里什么也没有·····················································57
犀牛的角其实是个疙瘩································································58
一角鲸的角其实是犬齿································································59
平胸龟的脑袋太大，无法缩进壳里··················································60
大食蚁兽因为爪子太大，无法好好走路············································61
水母的嘴巴也是肛门··································································62
海星进食时，会把胃吐出来··························································63
三趾树懒遇上连绵雨天会饿死·······················································64
胡蜂的成虫从幼虫那里获得食物····················································66
棱皮龟的口腔里长满了肉刺··························································67
马尾蜂的产卵管很碍事································································68
高脚蟹的脚太长，甚至因此在蜕壳中死亡·········································69
黑喉潜鸟有脚，却不会走路··························································70
鸮鹦鹉胖得飞不起来···································································71
大王酸浆鱿的眼睛是世界上优选的，却没什么用································72
大象上了年纪后，牙齿会磨损掉光·················································73
小龙虾的体色会随食物变化··························································74
★进化剧场①大象鼻子长的原因·····················································76
【第3章】让人遗憾的生活方式
雌薮犬倒立着小便······································································80
袋鼠宝宝被强制着吸奶································································81
浣熊其实很少浣洗食物································································82
鼩鼱3小时不吃饭就会饿死····························································83
帝企鹅将蛋放在脚上孵化2个月······················································84
雄性密刺角会变成雌鱼身上的疙瘩··················································85
海参遇袭时会排出内脏································································86
臭鼬放的屁越臭越受欢迎·····························································87
伞蜥遇敌时只会威吓···································································88
兔子会嘴对着肛门吃自己的便便·····················································90
蚁狮从不排便············································································91
大苇莺抚养杀子仇人···································································92
爆炸蚂蚁为赶走敌人会自爆··························································93
蜉蝣的成虫寿命仅有2个小时·························································94
食卵蛇只吃鸟蛋·········································································95
北极地松鼠1年中一半以上时间都在睡觉···········································96
海鞘成体过固着生活···································································97
负鼠遭遇袭击时会装死································································98
雄舞虻送给雌性的礼物是空的·······················································100
雌蓑蛾一生都蜗居在蓑囊中··························································101
二星龟金花虫用粪便击退敌人·······················································102
十七年蝉弄错了羽化年份，就会凄惨地死去······································103
尖嘴柱颌针鱼看到光就兴奋，夜晚会误入船中···································104
日本黑褐蚁容易被当成奴隶使唤····················································105
啄木鸟啄树就像人脑在撞车··························································106
大猩猩心思敏感，经常腹泻··························································107
军舰鸟经常掠夺其他鸟类的食物····················································109
牛每天要流180升口水································································110
菜粉蝶的幼虫一吃卷心菜，就会遇袭··············································111
屎壳郎一生钟爱大便··································································112
田鳖的雄性守护卵，雌性破坏卵····················································113
藏酋猴打架靠猴崽来劝架····························································114
海豚睡着的话会溺死··································································115
雄螳螂常被雌螳螂吃掉·······························································116
蜂鸟如果停止汲取花蜜，就会饿死·················································117
考拉整天睡觉，是因为中了桉树的剧毒···········································118
沙漠蝗吃同类···········································································120
俪虾终生囚禁在牢笼里································································121
日本弓背蚁最爱喝蚜虫的小便·······················································122
小蚜虫刚出生就怀孕了································································123
貘屁股不沾水就拉不出大便··························································124
金枪鱼一旦停止游泳，就会窒息而死··············································125
海獭如果不持续进食就会冻死·······················································126
秃头鹦鹉的秃头有损作为鹦鹉的风姿··············································127
大熊猫每天都在吃的竹叶，几乎没什么营养······································128
★进化剧场②超级爱吃鱼的海豹·····················································130
【第4章】让人遗憾的能力
沟齿鼠的毒液没什么用································································134
古氏龟蟾不会跳也不会游，入水就会淹死·········································135
异色瓢虫难吃到鸟会吐出来··························································136
科莫多巨蜥的口腔特别脏·····························································137
变色龙变色全看心情··································································138
金乌贼可以巧妙地变色，自己却是色盲···········································139
金花鼠的尾巴很容易断，而且无法再生···········································140
孤狼听起来很酷，其实过得很苦····················································142
睡鼠在冬眠中醒来会丧命····························································143
蜜罐蚁储存了一肚子的蜜，自己却吃不了········································144
蓝鲸竟然打不过虎鲸··································································145
冠海豹的鼻子会膨胀成气球·························································146
鳄冰鱼在超过3℃的海水中会窒息而死············································147
蜂蜜其实是蜜蜂的呕吐物····························································148
黑猩猩不会说话都是拜喉咙的构造所赐···········································149
99.99%的翻车鱼都无法长大························································150
蝎子在紫外线下会发光，但毫无用处··············································152
鼯鼠很不擅长从树上下来····························································153
鼹鼠挖隧道的速度和蜗牛的爬行速度差不多·····································154
水蚤遇险时头部会长角，但收效甚微··············································155
椿象会被自己的味道臭晕····························································156
蜘蛛会乘风飞行，把一切交给命运·················································157
沙漠角蜥陷入危险时，眼睛会喷血·················································158
花园鳗打架磨磨唧唧的·······························································160
水熊虫在隐生状态下生命力超绝····················································161
海马的最高时速只有1.5m····························································162
裸鼹鼠淋了尿，就会失去生育能力·················································163
小食蚁兽的威吓一点也不可怕·······················································164
潜鱼寄居在海参的肛门里·····························································165
苍蝇用脚试尝味道·····································································166
跳蚤擅长跳跃，却站不起来··························································167
猎豹在速度上特化过度，战斗力却很弱············································168
★进化剧场③夜行动物蝙蝠的故事 ·················································170
【翻页动画小剧场】
大食蚁兽的长舌头·································································25～75
轻轻摇晃的蓑蛾··································································79～129
变化无常的金乌贼······························································133～169