Nature, Published online: 25 February 2026; doi:10.1038/d41586-026-00374-6
If an area does not have any color coding, it means there are no conditions on the portions of dominoes within those spaces.
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"Do your homework, listen to your teacher, pay attention in class and read books, and that will give you something to focus on," she says in a matter-of-fact way.
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