A rare Raft Spider with it's kill a caterpillar. - Stockfoto

The fen raft spider breaks many of our spider stereotypes. It is large, beautiful and found not in dry dusty corners, but on sparkling water surfaces in our richest wetlands. One of our rarest species, fen raft spiders were first discovered in the UK at the Trust's Redgrave and Lopham Fen reserve in 1956. They have since been found at only sites in the U.K.