Science

Early mammal fossils

作者：AGENCIES

A FOSSILIZED mammal discovered in China is possibly the great-grandmother of modern placental (有胎盘的) mammals, including human beings, say scientists. The fossil, dating back more than 130 mil...

点击阅读全文

对本期电子报订户、有效期内的VIP教师会员和本学期二十一世纪英文报尊享卡用户，我们开放所有内容：
如果您拥有以上权限，请点这里登录；
订阅电子报，请点这里；
激活VIP教师卡，请点这里；
激活21英语尊享卡，请点这里。

相关文章
Bison named US’ national mammal （1156期）Awaken your inner early bird （1147期）Job hunters apply early （1144期）set aside time for early warnings （1032期）Early birds win support （1029期）Never too early: these teens can look forward to a bright future （1029期）Early birds confuse job market （980期）