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It may be an inconvenient truth but scientists say there is now compelling evidence that these aquatic animals, with their hard shells and soft insides, are sentient, and are able to experience fear, pain and distress.
In the season of goodwill to all, should we spare a thought for crustaceans? Prof Culum Brown of Macquarie University says many things people do to crustaceans as part of the food chain are “horrendous”.
Scientists and welfare advocates say crustacean welfare should be given a higher priority when the animals are caught, killed or transported, used in experiments, kept as pets and in their natural environment. Many would like to see a ban on live animal sales, exports and on boiling alive.
Studies also show crustaceans can learn, remember and solve problems, even though the physical structure of their nervous system is totally different to ours. Crabs can solve mazes to find food, they will remember the way, and when the maze is rejigged will adapt using trial and error.