" CURIOUS: "Why do birds fly South for the winter?"
SCIENCE: "Instinct."
It means, "We don't know. "

SCIENCE: "Instinct."
It means, "We don't know." style="width:100%;margin:20px 0;"/>

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" CURIOUS: "Why do birds fly South for the winter?"SCIENCE: "Instinct."It means, "We don't know. "