Octopus South Australia attack camera strange behaviour 4k slow motion

south australia southern ocean endemic rare temperate ocean ocean marine sea underwater adelaide great southern reef close up wide shot 4k uhd 25fps cinema camera slow motion rapid bay jetty pylon pier temperate reef behaviour australia fleurieu peninsula scene curious cute active octopus cephalapod octopus attack octopus on camera octopus tentacles tentacles beak crawl on dome friendly octopus southern octopus strange behaviour display close up tentacles octopus from below cephalapod attack hunt hunting strange