European squid propulsion. The posterior border is slightly concave. The head is relatively small and has large eyes which are covered with a transparent membrane. Like almost all squid, this species has ten limbs surrounding the mouth and beak: eight are relatively short arms, and two, which form the tentacles, are long, as they are used to catch prey. The fourth left arm of males is a hectocotylus. The European squid can grow up to 30–40 cm in the mantle length, but more usually they are 15–25 cm long. The males are generally bigger than the females and exhibit more rapid rates
Giant squid and on "Giant Squid: Filming the Impossible – Natural World Special" on BBC Two. The squid was about long and was missing its feeding tentacles, likely from a failed attack by a sperm whale. It was drawn into viewing range by both artificial bioluminescence created to mimic panicking Atolla jellyfish and by using a "Thysanoteuthis rhombus" (diamond squid) as bait. The giant squid was filmed feeding for about 23 minutes by Tsunemi Kubodera until it departed. The technique of using unobtrusive viewing and bioluminescence luring of the squid with quiet unobtrusive platforms was described by Edith Widder, a member of