A wild grey seal brought two front flippers together and made one sharp percussive sound underwater.
A placozoan is a living sheet with no neurons, yet thousands of cilia can fold that sheet into changing forms.
A robot hand can have sensitive fingertips and still fail to notice an object pressing into its palm.
For a revolutionary interval, noon moved to five and the day became a decimal fraction.
A robot can inspect a closed object the way a person checks an attic box: lift it, give it a careful shake, and feel what the motion reveals.
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