Cryptophytes are flagellated, eukaryotic phytoplankton found in environments ranging from tea-colored ponds to the blue-water open ocean. They vary in color from green to red, a trait that is imparted primarily by their phycobiliprotein (PBP) accessory pigments. In her latest review article titled "The colorful world of cryptophyte phycobiliproteins", Dr. Tammi Richardson discusses the current knowledge of the origin, structure and function of cryptophyte PBPs and highlights the remarkable phenotypic plasticity of PBP absorption, which may help cryptophytes acclimate to changes in their environment. A great read!