1787 年夏季的某一天,干旱使得美国新泽西州的伍德伯里河裸露出了河床。人们来到河床上,发现了一块很奇怪的石头,它与我们常见的被河水冲刷过的鹅卵石完全不同。这是一节长长的 就好像放大了十几倍的肉骨头,这是人类有记录的第一块被发现的恐龙化石。 物种灭绝的真实事件 探究自然物种灭绝 物种灭绝之谜 濒临灭绝动物名单资料 最新最全物种灭绝时间表 物种灭绝图片总结 史无前例物种灭绝 多少物种面临灭绝 物种灭绝的真实证据 六次物种灭绝详解 寻秘自然04物种灭绝(上)令人胆寒的灭绝真相,和困惑的幸存者
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我来说两句