大多数这些东西都是在灵长类动物漫长的发育过程中习得的，在这一过程中，它们会与同伴进行无数次的游戏体验。
Most of these things are learned in the long developmental periods that primates have, during which they engage in countless play experiences with their peers.
许多动物通过向它们经验更丰富的同伴学习而获得诸如捕猎、觅食或躲避天敌的一些技能。
Lots of animals learn from their more experienced peers to gain skills such as hunting, foraging or evading predators.
科学家能增加草原田鼠相关受体的表达，以加强动物对同伴的依附能力。
Scientists can increase the expression of the relevant receptors in prairie voles, and thus strengthen the animals' ability to attach to partners.
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