When dogs want to be fed or walked or wake up or go to bed at a time that is at odds with what the new clock setting shows by ...

The southern stingrays were among the most plentiful fish, though it took some effort to see them because of their camouflage. Their diamond-shaped body is flat overall with a brown, olive, and gray ...

Researchers at University of Tsukuba have discovered that the structure of vortices generated around a swimmer's feet changes with increasing speed during underwater undulatory swimming. Specifically, ...

1. undulate****：[ˈʌndjuleɪt]v.（使）起伏，（使）波动；（使）呈波浪形adj.（动植物）有波浪形边的 【拆】=und（波浪）+ul（cul指小名词后缀）+ate（来自拉丁语动词过去分词后缀，等于ed，在此用作动词和形容词后缀）→起（小）波浪（的）→（使）波动，（使 ...