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Ram or Srī Rāmachandra is the seventh avatar of the god Vishnu. He is the central figure of the Hindu epic Ramayana, which is the principal narration of the events connected to his incarnation on Earth, his ideals, and his greatness. Rama is one of the many deities in Hinduism and especially of the various sects of Vaishnavism. Religious texts and scriptures based on his life have been a formative component in numerous cultures of South Asia and Southeast Asia.Along with Krishna, Rama is considered to be one of the most important avatars of Vishnu. In Rama-centric sects, he is considered the Supreme Being, rather than an avatar.
The correct answer should be assimilation.
According to the psychological definition, assimilation is when somebody uses the existing knowledge to include something new in it. So, this kid knew what a bird is - he knows that it can fly. So when he saw a flying squirrel, he thought it was a bird, because he didn't know that there are squirrels who can do that.