Researchers from Rensselaer Polytechnic Institute (RPI) have unveiled a new species of ciliate, Euplotes gigatrox, which can transform into a cannibalistic 'supergiant' that preys on its genetically identical clones. This organism, found in a seawater filtration system in Curaçao, can grow over twice the size of normal cells and shifts from filter-feeding to actively hunting its relatives, consuming one every ten minutes. The study, published in the Proceedings of the National Academy of Sciences, highlights that this transformation involves distinct changes in gene expression, revealing a complex developmental capability previously associated mainly with multicellular organisms. Supergiants, which only make up about 5% of the population, emerge when prey is scarce, demonstrating a strategic adaptation to resource availability. This research opens new avenues for understanding cellular differentiation and development in unicellular life forms.