Slavery would not be fully abolished in France for another 30 years after the painting's debut, and yet here we have Jean Charles, the only black survivor, at the very apex of the painting signaling, for help.
Or, the terpene-signal can be less of an SOS and more of a " Save yourselves! " , telling other plants in the area to bolster any defenses they have in case the herbivore comes their way.
Police rescued a man held captive for refusing to join a ruthless pyramid scheme in Jinhua in eastern China's Zhejiang Province after he was able to signal for help using two bank notes.