Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Scientists have revealed how tiny swimming cells—such as sperm and bacteria—are able to move faster when traveling as a group ...

病毒形态虽然千变万化，但是结构上比较简单，说白了就是一个蛋白质外壳包着遗传物质（DNA或RNA)，缺乏独立代谢的能力，所以必须依赖于宿主细胞才能完成复制，最终还会导致宿主细胞破裂并释放大量新病毒。

The research, published in Physical Review Letters, focuses on a theoretical model for Paramecium – tiny single-celled organisms that live in water and propel themselves by beating hair-like ...

MobLand is a series that infuses Ritchie's signature style and attitude—like chewing shards of glass—gritty, razor-sharp, and ...

清晨阳光穿透水面，在晶莹的水珠中折射出七彩光芒。但若将这滴水放大百倍，你会看到另一个世界 —— 一个充满生命律动的 “微缩宇宙” ...

The study by Pudlowski et al. shows that a previously-identified protein complex, composed of delta- and epsilon-tubulin together with TEDC1 and TEDC2, functions in generating centriolar triplet ...