What is a Japanese spider crab? They may look like something from a 1950s sci-fi film, but Japanese spider crabs are gentle giants. And giants they are. Of the 60,000 species of crustaceans on ...

The crab is a spiny spider crab which can grow to a foot in ... species and although they look formidable - and can grow to the size of a beer barrel, hence the name - their sting is in fact ...