大角羊是生活在北美洲西部山区的一种野山羊,犄角能显示大角羊的年龄和性别。母羊头顶长着小而尖、朝后的角。公羊的犄角则大很多,在脑袋两侧呈弧形向下弯曲。公羊的犄角每年都会长几厘米,所以,一只发育良好的10岁公羊就会有一对巨大、坚硬、骨干十足的角,角尖可到眼睛下方。秋天,当繁衍季节开始时,母羊和小公羊都会远离那 A bighorn sheep is a wild goat living in the mountains of western North America. The horns show the age and sex of the bighorn sheep. Ewes with small and pointed heads, facing the corner. The horns of the rams are much larger, curved downward on the sides of their heads. The ram’s horns grow several centimeters a year, so a well-developed 10-year-old ram will have a pair of huge, hard, backbone-full horns down to the bottom of your eyes. In the fall, when the breeding season begins, ewes and rams will stay away from that