on Friday, 13 November 2009, the fourth generation of "growing signs" grew up again, mutated to much more complex physique and infected Tate Britain & Tate Modern in London.
Their epidemic evolution was determined by the "unlucky", "Witches' Sabbath" date: the wish of responding to paraskevidekatriaphobical superstitions lead them to obtain black and red colors and more solid centers of their bodies.

London	Tate Britain
	Tate Britain
	Tate Modern
	Tate Modern
Brazilian artist Eliane Paulino, continued to developed her own vision of "g-signs" and created two new family members of bioism creatures: London Tate Britain Tate Modern