Words and pictures can illustrate a lot about the world around us, but there’s nothing quite like video for putting reality in stark detail. And in the last few years, science fans have had an embarrassment of riches: new technology let scientists take video of bacteria harpooning DNA, cells moving through a living body, and a man talking … from the inside. Now, even newer visual tech is letting us see the development of an embryo at the cellular level, for the very first time. It’s not just cool — it’s also a breakthrough in our knowledge of biological development.

— Read on curiosity.com/topics/watch-an-embryo-develop-cell-by-cell-with-this-new-microscopic-technique-curiosity