出生大约六周后，东部土拨鼠已经足够大到可以在温和的环境中生存。
Roughly six weeks after birth, Eastern marmots are just old enough to take their chances of surviving in the temperate environment.
里德的研究表明，虽然没有什么能真正改变我们的 DNA，但孩子在出生前和出生后第一年所经历的环境差异有时能够影响 DNA 的表现方式，甚至使同卵双胞胎变成两个很不同的人。
Reed's research shows that though nothing can truly change our DNA, environmental differences that a child experiences before birth and in their first year can sometimes affect the way the DNA behaves, making even identical twins into very different people.
据称，胎儿在发育期间，会参考母亲的状况预测出生后所处的环境，从而调整自己的DNA。
It is thought that a developing baby tries to predict the environment it will be born into, taking cues from its mother and adjusting its DNA.
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