标签：人为干预 相关文章
A German zoo, under fire for letting a mother polar bear eat its five-week-old cub, apparently, has bowed to public pressure, and decided to hand-rear its last surviving baby. Their decisions to intervene, rather than let nature take its course, fol
发表于:2019-01-30 / 阅读(78) / 评论(0)
英伦广角
英伦广角