The freshwater crab ‘Potamon fluviatile’ was already known to survive in small numbers in rivers and waterways from Sicily to Tuscany, where it generally grows to a length of about 4 cm.....
In this patch of land, rarely visited by humans and crossed by many tiny rivulets, the crabs are routinely growing 50% bigger than normal.
The crab grows to a size of 6 cm in length, and they think that is "giant?"