是时候给人留下印象了(Time to make an impression)

每年的这个时候，阿拉斯加驯鹿开始感到有点活泼。从9月下旬到11月初，雄性将昂首阔步，相互锁住鹿角，争夺雌性的注意力，以期进一步丰富物种。成功的雄性每季度将与15-20只雌性交配。发情季节过后，雄性会掉角，而雌性会一直保留到春天。在今天的照片中，我们看到一些北美驯鹿在阿拉斯加中南部穿越苏西特纳河。
原文：
It’s that time of year when Alaskan caribou are beginning to feel a little frisky. From late September until early November, males will be strutting their stuff, locking antlers with one another, and competing for the attention of females in hopes of furthering the species. Successful males will mate with 15-20 females a season. After the rutting season, males will shed their antlers while females keep theirs until spring. In today’s photo, we’re looking at some caribou in southcentral Alaska crossing the Susitna River.
《© Tim Plowden/Alamy》