<p>Freediver Jules Casey was lucky to spot an unusual sight across three evenings, when a blue-ringed octopus was seen protecting its eggs on the sea floor near Port Phillip, Victoria.</p><p>Casey said it was a sight “rarely found”.</p><p>The blue-ringed octopus</a> is “distinctive and venomous” and commonly found in the Pacific and Indian oceans. Credit: onebreathdiver via Storyful</p><br />
