0Blue-ringed octopuses are beautiful but have an extremely dangerous venom that can paralyze and kill. This title introduces readers to the blue-ringed octopus and why and how it uses its powerful venom. This title is at a Level 1 and is written specifically for beginning readers. Aligned to Common Core standards & correlated to state standards. Dash! is an imprint of Abdo Zoom, a division of ABDO.