The octopus is considered the most intelligent invertebrate in the world, according to some measures as smart as a golden retriever! These cephalopods are known to break out of their tanks and escape back to their natural habitat. If you don’t believe us, just take a look at an octopus breaking out of a sealed glass jar! The unique creature uses its tentacles to unscrew the jar top in the right direction to set it free.
The smartest vertebrate in the world