translation.en: Two quantum-entangled electrons within a single molecule dance a delicate dance that is very sensitive to the direction the bird flies in the Earth's magnetic field.
translation.zh: 单细胞当中的两个有着量子纠缠关系的电子 跳着非常微妙的舞蹈， 并对鸟类在地球磁场里 飞翔的方向很敏感。