猫头鹰的头，能转一整圈吗？

An owl can turn its head far around. 猫头鹰的头，能转过去老远。 It looks almost like it spins all the way. 看着呀，就像转完了一整圈。 But it really turns two hundred and seventy degrees. 其实呀，它只转了270度。 That is three quarters of a full circle. 也就是一圈的四分之三。 It cannot turn a full three sixty. 完整的360度，它可做不到。 Special bones and blood vessels help it. 特殊的骨头和血管，帮了它大忙。 So owl eyes still face the front. 所以猫头鹰的眼睛，还是只能朝前看。