土拨鼠一般指旱獭，全球约15种，我国有4种，即灰、长尾、西伯利亚和喜马拉雅旱獭，分布于西北、东北及青藏高原的草原、高山草甸。网络视频里旱獭矮胖蠢萌，体长可达60厘米、体重超7公斤，靠厚毛皮与脂肪形似肉墩。分类学上，旱獭与敏捷的松鼠是近亲，同属松鼠科不 ...

Millions of people across more than 20 states from the Midwest to the Northeast are on alert as the first in a pair of ice ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

Xiao Shenglan (L) and his wife He Xiaozhen pick peppers at Xiao's farm in Ningxiang City, central China's Hunan Province, Feb ...