沼泽也充满阳光，所以即使是低效的食肉植物也能获得足够的光，依靠光合作用生存。
Bogs are also flooded with sunshine, so even an inefficient carnivorous plant can photosynthesise enough light to survive.
树木通过它们的合作与帮助生存下来，传递着必要的营养。
Trees survive through their cooperation and support, passing around necessary nutrition.
这可能在人类社会进化早期的某个时候已经发生了，那时候为了生存，人们被迫合作打猎或采摘野果。
This could have happened at some point early in human evolution, when in order to survive, people were forced to cooperate in hunting game or gathering fruit.
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