三角龙

NHMLA

Did you know "" literally means "three-horned face"? A typical adult had long brow horns pointed forward—as distinctive headgear didn’t develop until adulthood, it was likely also used in mating displays and competition.

图片来源于网络

你知道吗“Triceratops”字面上的意思是"脸上有三只角“，一头典型的成年三角龙额头有指向前方的角，这些角直到成年才会发育，它们也可能用于吸引异性。