Each segment has an electromagnet attached to it, and these are activated by a current that flows from head to tail in more or less the way that a nerve signal flows in a real animal.

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In fact, serving fish with the head and tail intact is thought to bring in a good beginning and end to the year.

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Dr Fril has used this knowledge to create a FrenchFlag fish, with a blue head, a white body and a red tail, and hopes to follow it soon with one depicting the stars and stripes.

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It reportedly took Ms. Moss six months to learn the move, in which you bring a leg looping up from behind your head, like a scorpion's tail, to bonk someone on the noggin.

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He displayed his discovery at the Philadelphia Academy of Sciences and showed it off to colleagues, including Othniel Marsh--who retorted that the head of his so-called elasmosaurus was firmly affixed to its tail.

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At the end of our four-hour hike, Remo pounced into a dense roadside thicket to catch a scarce swallowtail, a butterfly noted for its brilliant blue and gold tail whose design mimics the head of a distasteful insect to ward off predators.

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And that the coin, when flipped and allowed to come to rest on the floor, did so on its rim, neither head nor tail.

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But after a lifeboat rescue, the endearing creature - which looks like a giant head, and has a parrot-like beak, no tail and two giant dorsal fins - is settling down to life at the Blue Planet Aquarium in Ellesmere Port, Cheshire.

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