For #molluscmonday enjoy this video of a Magnapinna (bigfin) squid. That "Elbow" Joint? A sharp, right-angle bend forms where their thick upper arms transition into ultra-thin dangling filaments. We think this bend keeps their long threads from tangling www.youtube.com/watch?v=Z72S...
youtube.com
A Ghostly Find: Bigfin Squid
YouTube video by NOAA Ocean Exploration