Curious about the social behaviors of cephalopods, marine biologist David Scheel brought an octopus named Heidi home to live with him and his teenaged daughter. In this clip from an upcoming PBS show called Octopus: Making Contact, you can see the octopus changing colors while colors while she sleeps, which Scheel speculates is due to actions happening in the octopus’s dream.
If she is dreaming, this is a dramatic moment. You can almost just narrate the body changes and narrate the dream. So here she’s asleep and she sees a crab and her color starts to change a little bit. Then she turns all dark; octopuses will do that when they leave the bottom. This is a camouflage, like she’s just subdued a crab and now she’s going to sit there and eat it, and she doesn’t want anyone to notice her.
This program already aired in the UK with the much snappier title of The Octopus in My House; check out a review here.
Heidi loves to play. Given a toy (an old pill bottle, say), she hurls it round as if it were a swimming aid, and she a toddler newly out of water wings. Scheel has trained her so effectively to pull on a string that activates a buzzer that in the end he has to dismantle the thing if he wants to get a night’s sleep. She loves to touch and be touched, entwining her arms with those of Laurel for minutes at a time. Does she recognise her owners? Indubitably. When Scheel approaches the tank as himself, she rushes to its side, as if in greeting. But when he approaches disguised in a rubber mask, she hides.
(thx, dunstan)
Tags: biology David Scheel science TV videofrom kottke.org https://ift.tt/2lkuGRd
via IFTTT
EmoticonEmoticon