Beneath the fog-shrouded waters of Venice’s lagoon, there lurks a silent killer. Numbering in its millions, it is wreaking ...

These crustaceans have been misnamed for two reasons: First, they’re not true crabs, like blue crabs, in that they don’t have a uniformly hard exoskeleton and can’t grow their own shells.

The Atlantic blue crab – named for its vivid blue claws - was introduced accidentally to Italian waters, probably via the ballast water held on cargo ships. The species originates from the ...