Tiktaalik roseae, also known as the “fishapod,” is an animal that lived about 375 million years ago, with features of fish and four-legged animals.
Dutch draper Antonie van Leeuwenhoek (1632–1723) built microscopes that allowed him to observe never-before-seen microorganisms, including this rotifer. He called them “animalcules.”
Pushing the limits of light microscopy to the nanoscale, new technology allows visualization of single proteins in cells.
Using super-resolution microscopes, scientists have uncovered how single protein molecules behave, and the results are astonishing.