- Octopuses are highly intelligent, probably more intelligent than any other order of invertebrates. The exact extent of their intelligence and learning capability is much debated among biologists, but maze and problem-solving experiments have shown that they do have both short- and long-term memory.
- In laboratory experiments, octopuses can be readily trained to distinguish between different shapes and patterns. Octopuses have also been observed in what some have described as play: repeatedly releasing bottles or toys into a circular current in their aquariums and then catching them. Octopuses often break out of their aquariums and sometimes into others in search of food.
- In the UK, cephalopods such as octopuses are regarded as honorary vertebrates under the Animals (Scientific Procedures) Act 1986 and other cruelty-to-animals legislation, extending to them protections not normally afforded to invertebrates.
And I’ll definitely need to learn the Japanese word for vegetarian, which I hope doesn’t mean simply a plate of white rice.