Keywords: Porcupine.pufferfish.arp.jpg Porcupine pufferfish Diodon holocanthus at Bristol Zoo Bristol England On the right is a Blue-spotted grouper Cephalopholis argus and partially hidden on left a Picasso triggerfish Photographed by Adrian Pingstone 2005-12 Adrian Pingstone Arpingstone 51 27 51 8 N 2 37 18 6 W Diodon holocanthus Cephalopholis argus Bristol Zoo Gardens Aquarium |