The Ocean 💙 on Instagram: "Fascinating octopus behaviour captured by @matthewunderwater. This was the one of the most amazing encounters I’ve ever had!! Never before had I witnessed such incredible behavior from an octo. I sat with her for 20 minutes with my @panasonic @lumix GH5 rolling and was lucky enough to capture it :-) I have heard several explanations and I believe the octo is moving water over her eggs (which are underneath her) to oxygenate them. Please let me know if you can confirm