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== 梁氏出品 必属精品 ==

1
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侏罗纪森林外围

2
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有只母龙正在产卵

3
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这是梁龙，体重25吨

4
00:01:01,426 --> 00:01:05,419
它一一将足球大小的蛋
小心置于壕沟

5
00:01:17,976 --> 00:01:22,072
它轻轻将蛋掩埋
任它们自生自灭

6
00:01:23,549 --> 00:01:26,677
它的族群远在蕨类原地觅食

7
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梁龙属于龙脚类

8
00:01:32,357 --> 00:01:34,848
龙脚类称霸侏罗纪

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它们是地球上最大型的动物

10
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科罗拉多
西元前一亿五千二百万年

11
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我们回到侏罗纪时期

12
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南北延伸的盘古大陆
在侏罗纪分裂

13
00:02:32,450 --> 00:02:34,680
侏罗纪比三叠纪潮湿

14
00:02:35,352 --> 00:02:38,844
昔日的沙漠
如今变成大片针叶林

15
00:02:40,491 --> 00:02:44,154
这时恐龙已经在地球上
生存了七千万年

16
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地球绿意盎然

17
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恐龙演化出千百种型态

18
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三个月前母梁龙在森林边的
空地上产下一百颗蛋

19
00:03:17,961 --> 00:03:20,521
现在应该是孵化的时候了

20
00:03:20,930 --> 00:03:23,990
但显然偷蛋贼已经捷足先登

21
00:03:26,603 --> 00:03:28,867
罪魁祸首是嗜鸟龙

22
00:03:29,873 --> 00:03:32,569
肉食的嗜鸟龙身长两公尺

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是最接近鸟类始祖的恐龙

24
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通常捕食森林里
小型的蜥蜴和晡乳类

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初生的幼龙也照吃不误

26
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十公尺外的地表有动静

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嗜鸟龙注视着
小梁龙孵化完成

28
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四周还有更多小梁龙
挣扎着爬出地表

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梁龙以量取胜

30
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嗜鸟龙忙着进食
无暇追逐其他小梁龙

31
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它吃饱了

32
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一只小母梁龙正在喘息片刻

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然后就跟随其他幸存的手足
迅速奔向丛林

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梁龙妈妈当初在森林边产卵

35
00:05:18,981 --> 00:05:21,916
是因为它体型过大
无法走入森林

36
00:05:22,618 --> 00:05:24,210
但小梁龙别无选择

37
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它们需要森林掩护

38
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往后几个月唯有借助树林
才能避开掠食者

39
00:05:39,601 --> 00:05:43,162
红杉林立
森林地表覆满蕨类

40
00:05:55,250 --> 00:05:59,414
小梁龙在蕨丛里
展开终生最爱的觅食任务

41
00:06:01,623 --> 00:06:03,386
梁龙出生时只有数公斤

42
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成年之前
它们每年必须增胖一吨

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平均一天增胖二、三公斤

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森林并非完美的藏身所

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遇到危险

46
00:06:27,649 --> 00:06:31,608
小梁龙便静止不动
靠保护色自保

47
00:06:38,927 --> 00:06:40,622
这次它虽然逃过一劫

48
00:06:41,429 --> 00:06:44,023
但是掠食者眼尖，经常得逞

49
00:06:50,805 --> 00:06:52,568
地表并非全是森林

50
00:06:53,775 --> 00:06:55,640
还有广阔的蕨类原地

51
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侏罗纪的巨龙就是在此出没

52
00:07:01,316 --> 00:07:04,513
包括拥有独特背骨板的剑龙

53
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蕨类原地中不见树木

54
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因为大型食草恐龙不停啃食

55
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但对森林冲击最严重的

56
00:07:22,971 --> 00:07:25,405
莫过于
体型最大的龙脚类恐龙

57
00:07:38,787 --> 00:07:40,550
长颈巨龙的种类繁多

58
00:07:41,756 --> 00:07:44,486
其中以梁龙的体型最长

59
00:07:47,729 --> 00:07:52,359
为求自保，梁龙至少
会集合30只一起行动

60
00:07:56,504 --> 00:07:59,234
老梁龙体长可达40公尺

61
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梁龙的颈子又强又挺直

62
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觅食区再广也没有问题

63
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梁龙的长尾巴
与长颈子维持平衡

64
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尾端细长如鞭
用来和族群成员沟通

65
00:08:17,592 --> 00:08:20,755
龙群行进时
引来许多小型动物

66
00:08:23,297 --> 00:08:27,199
梁龙移动觅食时
惊动昆虫群飞而起

67
00:08:30,271 --> 00:08:34,799
蜻蜓类等肉食昆虫
便把梁龙当成捕食台

68
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有一种称为圆颚龙的
迷你翼龙

69
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甚至靠梁龙维生

70
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圆颚龙以昆虫为食

71
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一生追随梁龙

72
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它们在梁龙身上
打架，进食，繁殖

73
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梁龙的吨位
是它们的15万倍

74
00:09:26,627 --> 00:09:29,790
每只梁龙
每天制造一吨的排泄物

75
00:09:34,468 --> 00:09:36,561
这样自然引来更多昆虫

76
00:09:37,738 --> 00:09:39,399
尤其是金龟子

77
00:09:41,175 --> 00:09:42,369
数百万年后

78
00:09:42,876 --> 00:09:46,972
金龟子的后代
会在非洲草原清理大象粪便

79
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而侏罗纪的金龟子
早已开始清理恐龙粪便

80
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梁龙群带着独特的生态模式
继续往前迈进

81
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一年后

82
00:10:13,907 --> 00:10:15,033
下了一夜雨

83
00:10:15,809 --> 00:10:18,175
热带晨雾笼罩着红杉林

84
00:10:19,079 --> 00:10:21,138
恐龙的合唱声此起彼落

85
00:10:26,920 --> 00:10:29,548
一年前
初生的小梁龙遁入森林

86
00:10:30,624 --> 00:10:32,922
母小梁龙在深谷觅食

87
00:10:36,330 --> 00:10:38,525
它的身长已超过三公尺

88
00:10:39,766 --> 00:10:42,997
它和其他幼龙一起集体觅食
以求安全

89
00:10:46,340 --> 00:10:47,864
它们来到这里是因为

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山谷岩壁潮湿
藓苔和蕨类都很丰富

91
00:10:54,748 --> 00:10:56,739
可是山谷水源流向原野

92
00:10:57,584 --> 00:10:59,313
绿地引来了大型恐龙

93
00:11:07,361 --> 00:11:09,295
这头公剑龙重达七吨

94
00:11:10,731 --> 00:11:14,098
剑龙虽然也是草食动物
但却相当危险

95
00:11:15,302 --> 00:11:17,202
背上骨板主要用来炫耀

96
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尾部一公尺长的骨钉
才是致命武器

97
00:11:23,877 --> 00:11:28,576
虽然剑龙体大脑小
但是尾部骨钉却极具杀伤力

98
00:11:32,986 --> 00:11:35,318
幼梁龙进入深谷，避开剑龙

99
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可是两只异特龙
却循着气味逼近

100
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剑龙将骨板充血
显露恐怖色彩

101
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剑龙的障眼法吓退了异特龙

102
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小梁龙只能算是小型猎物

103
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而异特龙则好比狮子

104
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是侏罗纪顶尖的掠食者

105
00:13:45,284 --> 00:13:47,343
幼梁龙再次躲入蕨类丛

106
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如今它们有半吨重
无法完全藏身

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逐渐长大后，它们会有
更像成年梁龙的牙齿

108
00:14:05,438 --> 00:14:08,999
但是牙齿不锐利
不宜啮咬咀嚼

109
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反而比较适合剥下蕨叶

110
00:14:23,721 --> 00:14:25,450
附近有具梁龙骨骸

111
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骨骸太大了
森林其他动物搬不动

112
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小母梁龙不知道
十年后，它也能长这么大

113
00:14:45,677 --> 00:14:48,077
幼梁龙发现已经走到
森林外围

114
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便掉头走回去

115
00:15:05,930 --> 00:15:08,899
成年梁龙群在别区铲除森林

116
00:15:13,237 --> 00:15:16,138
它们向来如此改造周围地表

117
00:15:21,145 --> 00:15:23,943
梁龙觅食时推倒许多树木

118
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开辟出大片蕨类原地
与空旷林地

119
00:15:31,923 --> 00:15:34,619
其实梁龙只吃
生于林间的蕨类

120
00:15:35,660 --> 00:15:38,322
它的牙齿适合柔软蕨叶

121
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不适合食用树枝

122
00:15:55,579 --> 00:15:59,709
梁龙的巨大体型
全拜超长肠胃之赐

123
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这种肠胃能消化最坚韧的
侏罗纪植物

124
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叶片进入消化道

125
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利用梁龙吞进胃里的石头
来磨碎叶片

126
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细菌发酵食物
梁龙就能摄取营养

127
00:16:27,108 --> 00:16:29,303
消化过程产生大量气体

128
00:16:30,445 --> 00:16:34,905
趁肠胃仍在进行消化时
梁龙可以再继续觅食

129
00:16:52,200 --> 00:16:52,928
四年后

130
00:17:01,275 --> 00:17:03,140
圆颚龙在林里搜寻

131
00:17:05,213 --> 00:17:08,478
它找的不是昆虫，而是宿主

132
00:17:15,156 --> 00:17:16,919
它看上了幼梁龙

133
00:17:18,826 --> 00:17:21,659
就是五年前孵化的小母梁龙

134
00:17:23,531 --> 00:17:27,092
它现在有12公尺长，5吨重

135
00:17:30,772 --> 00:17:33,263
它的脊椎和长尾开始发育

136
00:17:36,644 --> 00:17:39,772
森林的掠食者
已经不足以构成威胁

137
00:17:46,954 --> 00:17:49,923
嗜鸟龙竖起冠毛，虚张声势

138
00:18:02,937 --> 00:18:04,666
幼梁龙成群而居

139
00:18:05,239 --> 00:18:07,036
但森林无法容纳它们

140
00:18:07,575 --> 00:18:08,735
不仅食物不足

141
00:18:09,277 --> 00:18:11,472
树木也限制了它们的行动

142
00:18:12,413 --> 00:18:16,543
它们迟早得离开森林
加入原野的梁龙群

143
00:18:21,322 --> 00:18:24,314
河流贯穿森林
河岸空间较大

144
00:18:25,626 --> 00:18:29,153
但是自然界即将改变
梁龙的命运

146
00:18:44,844 --> 00:18:46,835
森林里传来阵阵烟味

147
00:18:48,515 --> 00:18:50,608
吓坏森林里所有的恐龙

148
00:18:59,659 --> 00:19:01,650
南部发生森林大火

149
00:19:03,396 --> 00:19:04,886
梁龙开始逃生

150
00:19:05,665 --> 00:19:09,499
但梁龙移动时
须三脚着地，支撑体重

151
00:19:10,270 --> 00:19:12,261
大难当前也走不快

152
00:19:22,515 --> 00:19:23,982
大火延烧迅速

153
00:19:25,018 --> 00:19:27,919
风暴性大火当晚摧毁森林

154
00:19:38,365 --> 00:19:40,959
火场传来受困恐龙的惨叫声

155
00:19:45,105 --> 00:19:48,541
侏罗纪火灾少
但一发不可收拾

156
00:20:03,890 --> 00:20:06,085
早晨只见遍地死尸

157
00:20:06,726 --> 00:20:09,320
全是葬身火窟的森林恐龙

158
00:20:17,871 --> 00:20:21,500
三头幸存的幼梁龙
被迫移往原野

159
00:20:24,144 --> 00:20:26,476
幼龙在此缺乏掩蔽

160
00:20:27,247 --> 00:20:30,375
体型过小
敌不过成年异特龙

161
00:20:38,324 --> 00:20:42,693
对幼梁龙而言
其他恐龙显得巨大陌生

162
00:20:58,845 --> 00:21:02,281
腕龙高13公尺，专吃树顶

163
00:21:02,916 --> 00:21:06,943
高高在上的球果和嫩叶
睕龙垂手可得

164
00:21:09,155 --> 00:21:12,522
睕龙也因此
长成70吨的巨无霸

165
00:21:13,193 --> 00:21:15,593
成为地球最大的陆生动物

166
00:21:28,007 --> 00:21:30,237
幼梁龙体型小，居劣势

167
00:21:30,677 --> 00:21:32,645
亟需成年梁龙群的保护

168
00:21:43,523 --> 00:21:46,754
幼梁龙声声哀嚎
穿过石南地

169
00:21:49,429 --> 00:21:53,092
成年恐龙
天生对幼龙呼叫会有反应

170
00:21:56,669 --> 00:22:00,571
现在只剩下两只幼梁龙
它们需要救助

171
00:22:12,185 --> 00:22:13,812
一群梁龙回应了

172
00:22:19,259 --> 00:22:21,386
一头母梁龙上前观察

173
00:22:22,095 --> 00:22:23,722
随后接受了梁龙

174
00:22:30,670 --> 00:22:33,002
幼龙列队跟在母梁龙身后

175
00:22:33,540 --> 00:22:34,802
总算得救了

176
00:22:51,958 --> 00:22:58,158
五年后

177
00:22:58,798 --> 00:23:00,595
梁龙成员完备

178
00:23:01,668 --> 00:23:03,431
小的有12公尺长

179
00:23:04,571 --> 00:23:06,766
最大的足足有三倍长

180
00:23:09,876 --> 00:23:11,104
繁殖季到了

181
00:23:11,611 --> 00:23:14,273
十年前森林里孵化的母梁龙

182
00:23:14,514 --> 00:23:17,881
终于长大成龙，准备交配

183
00:23:23,089 --> 00:23:25,182
公梁龙开始献殷勤

184
00:23:25,592 --> 00:23:28,322
摆动长尾，向母梁龙示好

185
00:23:32,899 --> 00:23:34,560
偶而会爆发冲突

186
00:23:37,036 --> 00:23:39,163
巨龙相争，威力惊人

187
00:23:39,672 --> 00:23:42,470
足以撞断肋骨，撼动大地

188
00:24:00,927 --> 00:24:02,485
胜利者赢得交配权

189
00:24:15,008 --> 00:24:17,340
一头公梁龙靠近母梁龙

190
00:24:20,013 --> 00:24:22,277
母梁龙先是顿足回应

191
00:24:22,682 --> 00:24:25,173
再发出低频的交配呼唤

192
00:24:26,753 --> 00:24:30,553
这种低沉的次音
大部份动物听不见

193
00:24:31,524 --> 00:24:33,583
公梁龙从地面获得讯息

194
00:24:34,093 --> 00:24:37,893
便慢慢走近母龙
彼此摩擦躯体

195
00:24:45,872 --> 00:24:47,567
母龙表示接纳

196
00:24:50,977 --> 00:24:53,775
交配对母梁龙来说很危险

197
00:24:54,347 --> 00:24:57,043
它起码得额外背负十吨重

198
00:25:02,354 --> 00:25:06,085
母梁龙长大后
椎骨会强化密合

199
00:25:06,391 --> 00:25:08,757
以利重量级交配的进行

200
00:25:27,845 --> 00:25:30,780
数天后，梁龙恢复平静

201
00:25:33,884 --> 00:25:36,250
母梁龙在族群外围觅食

202
00:25:36,954 --> 00:25:40,014
它体型较小，无法独力御敌

203
00:25:40,958 --> 00:25:44,223
它没察觉自己
已经被敌人盯上了

204
00:25:48,799 --> 00:25:50,790
异特龙看它脆弱可欺

205
00:25:59,210 --> 00:26:01,838
猎食者准备等它落单时出手

206
00:26:52,263 --> 00:26:55,198
所幸大梁龙的长尾救了它

207
00:27:02,640 --> 00:27:05,973
它带伤归队，体侧伤口极深

208
00:27:06,210 --> 00:27:07,575
但并无大碍

209
00:27:11,015 --> 00:27:13,074
梁龙能活到一百岁

210
00:27:13,651 --> 00:27:15,983
体型够大时便无天敌

211
00:27:21,058 --> 00:27:23,891
龙脚类恐龙称霸侏罗纪后期

212
00:27:24,562 --> 00:27:29,056
数百年后
才有新种草食恐龙取而代之

213
00:27:30,735 --> 00:27:35,570
龙脚类消失后
巨型恐龙也将走进历史

214
00:28:22,887 --> 00:28:25,185
龙脚类恐龙逐渐衰亡

215
00:28:25,823 --> 00:28:29,850
海平面上升
大水淹没低洼原野

216
00:28:30,628 --> 00:28:32,721
内海于是成形

217
00:28:33,798 --> 00:28:38,929
第三集我们将介绍
出没内海的肉食爬虫类

218
00:28:39,170 --> 00:28:40,330
翻译：林淑惠

219
00:28:40,538 --> 00:28:41,835
感谢赖景阳教授的指导

220
00:28:42,006 --> 00:28:43,132
谢谢观赏