SYDNEY, June 20 (Xinhua) -- Once thought to be a single species found worldwide, the bluebottle has now been identified as at least four genetically distinct species, a new research has revealed. The ...

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 ...