Squid
A cephalopod mollusk with an elongated body, eight arms, and two long tentacles, closely related to its fellow cephalopod the octopus.
Cuttlefish are close relatives of squid. In a marshmallow-test-style experiment, they gave up available food to wait up to 130 seconds for a preferred one — the first self-control shown in an invertebrate. Those that waited longest also learned fastest.
0
Nintendo's Splatoon characters began as tofu blocks that shot ink to claim turf. Next came rabbits: ink showed on white fur, and ears signaled direction. But developers couldn't connect rabbits with ink, so they switched to squids.
0
The brain of a cephalopod is shaped like a donut, with the esophagus running straight through the center. Even in a 300 kg colossal squid, the esophagus is only about 10 mm in diameter—so swallowing too large a piece of food can compress the brain and cause damage.
0