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The grain direction must go from head to tail.

纸张的纹理必须垂直地从头顺到尾。

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Deinonychus, or "terrible claw" after the sickle-shaped talon on each hind foot, stood about 11 feet from head to tail and was a lithe predator.

这种被称为恐爪龙(Deinonychus)的恐龙后足上存在镰刀般的利爪，从头到尾的身长约为3.3米，是一种非常敏捷的掠食者。

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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.

ECONOMIST: Robots

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

FORBES: Here Comes the Rabbit with Luck and Prosperity for All - Vegas Style

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.

ECONOMIST: Genetic engineering