SYDNEY, June 18 (Xinhua) -- Sharks nearly perfectly follow the long-hypothesized "two-thirds scaling law," a mathematical rule that predicts how surface area and volume change with body size in large ...

许多人都是透过摄影师的镜头来了解神秘的海底世界的。2021年度水下摄影比赛刚刚揭晓了获奖作品，一起来领略海洋深处的 ...