Some ants, when they arrived at the feeding station, had the ends of their legs amputated, to shorten their stride length.
有的蚂蚁抵达饲喂点后，就将其腿部末端切除，以缩短其步长。
Running causes the muscles to shorten and stretching helps them re-establish their resting length, so you don't feel stiff afterwards.
跑步过程会使肌肉的长度变短，这种拉伸练习可以帮助肌肉重新恢复至其安静状态时的长度，从而不会使你在练习过后感到肌肉僵硬。
Telomere length tends to shorten with age, and shorter telomeres tend to be linked with shorter life spans.
端粒的长度与寿命的长短有关，染色体端粒越短，它所在的生命跨度也就越短。
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