自人类诞生之初起，人们就仰望星星、月亮和行星。
Since the earliest times, people have looked up at the stars, the moon and the planets.
考古学家发现的最古老的娃娃有三万多年的历史，从人类诞生之初就有了娃娃这一概念。
The concept of a doll has been around from the beginning of humanity.
由于人类的视网膜上也有这种蛋白，因此，在人类诞生之初，可能也能够感知磁场，只是在进化过程中，这种蛋白逐渐转变，行使其它功能。
Humans may thus have an incipient magnetic sense, or evolution has adopted the molecule for another use in us. Christopher Intagliata reports.
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