英语听力：自然百科 大迁徙之繁衍生息 Need to Breed—4
时间：2019-01-22 作者：英语课 分类：自然百科2011年
英语课
An egg tumbled from the nest is fair game for Johnny rook. He'll soon have his own clamoring brood to look after.
On another stretch of beach, the shoreline quakes with desperate battles to dominate. The stakes are unimaginably high. Only a privileged few elephant seal bulls will become beachmasters, controlling harems of dozens of females and reproducing abundantly. This is no place for a young male to stick his nose in.
Usually trumpeted 1 warnings make challengers back off, but not all.