在胚胎发育过程中这种简单对称和变异是如何演化的，这是个很引人入胜的问题。
How the simple symmetry and its breaking evolves during the growth of the embryo is intriguing.
压实不均衡和生烃作用分别是本区超压发育、演化不同阶段的主控因素。
Compaction disequilibrium or hydrocarbon generation is main controlling factor of different phases for the development and evolution of overpressure.
为什麽演化容许脑子发育到会威胁生命的地步？
Why has evolution allowed the brain to grow so hazardously large ?
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