Pete Oxford / Balloonfish (Diodon holocanthus) beside fan coral, Coral Reef Island, Belize Barrier Reef, Belize

Michele Westmorland / Balloonfish (Diodon holocanthus) on the seabed, within in coral reef system, Dominica, West Indies, Caribbean.

Pete Oxford / Freckled Porcupinefish / Balloon fish (Diodon holocanthus) off of North Stradbroke Island. Queensland. Australia

Pete Oxford / Balloonfish (Diodon holocanthus) Tagus Cove, Isabela Island. Galapagos Islands, Ecuador, South America

Pete Oxford / Balloon fish (Diodon holocanthus) Tagus Cove, Isabela Island, Galapagos Islands, Ecuador, South America

GEORGETTE DOUWMA / Balloon fish (Diodon holocanthus) amongst corals, Lembeh Strait, North Sulawesi, Indonesia

GEORGETTE DOUWMA / Balloon fish / Fine-spotted porcupinefish (Diodon holocanthus) Lembeh Strait, North Sulawesi, Indonesia

Constantinos Petrinos / Balloon fish / Freckled porcupinefish {Diodon holocanthus} mating pair. Lembeh, Sulawesi, Indonesia

Juergen Freund / Balloon fish / Spiny pufferfish {Diodon holocanthus} defense display, Caribbean

Franco Banfi / Long-spine porcupinefish (Diodon holocanthus) swimming over seabed, Espiritu Santo Island, Baja California, Mexico, Sea of Cortez.

Lucas Bustamante / Long-spine porcupinefish (Diodon holocanthus) peering out of hole in reef, Isabela Island, Galapagos National Park, Pacific Ocean.

Claudio Contreras / Long-spine porcupinefish (Diodon holocanthus) swimming through coral reef. Huatulco Bays National Park, Oaxaca state, Mexico, Pacific Ocean. November.