Jan Swammerdam was a Dutch biologist, anatomist, and microscopist, considered one of the founding fathers of cell biology and embryology. Some of the synonyms of his name are Johannes Swammerdam, Jan Swammerdam van Zwaerenoost, and John Swammerdam. He was born on February 12, 1637, and died on February 17, 1680. Swammerdam's works were significant in the study of insects' anatomy and metamorphosis. He also discovered the existence of red blood cells, which he referred to as "little red globules." Swammerdam's contributions to science remain relevant even centuries later, and his name is synonymous with pioneering studies in biology.