Spiny back orb-weaver spider. This spider (Gasteracantha arcuata) grows a pair of extremely long, curving spines from its abdomen. It is thought the long spines evolved as a deterrent against predators or to mimic spines and thorns.
Picture: Nicky Bay / Science Photo Library / Rex Features
“It is the first-known predominantly vegetarian spider; all of the other known 40,000 spider species are thought to be mainly carnivorous. Bagheera kiplingi, which is found in Central America and Mexico, bucks the meat-eating trend by feasting on acacia plants. ” -BBC