Sergio Hanquet / Scrawled filefish (Aluterus scriptus) above sea floor, several fish in background. El Hierro, Canary Islands.

Sergio Hanquet / Ocean sunfish (Mola mola) and Pilot fish (Naucrates sp). Tenerife, Canary Islands.

Sergio Hanquet / Ocean sunfish (Mola mola) and Pilot fish (Naucrates sp). Tenerife, Canary Islands.

Sergio Hanquet / Ocean sunfich (Mola mola) at sea with pilot fish. Sp: Pez Luna, Pejeluna - fr: Poisson lune.

Tony Wu / Brown-lined puffer fish (Canthigaster rivulata) pair spawning. Shizuoka Prefecture, Honshu, Japan. June.

Magnus Lundgren / Wild Wonders of China / Valentin's toby (Canthigaster valentini), Xiaoliuqiu Island, Taiwan

Magnus Lundgren / Wild Wonders of China / Valentin's toby (Canthigaster valentini) sleeping, Xiaoliuqiu Island, Taiwan

Magnus Lundgren / Wild Wonders of China / Sleeping Valentin's toby (Canthigaster valentini) Xiaoliuqiu Island, Taiwan

Magnus Lundgren / Wild Wonders of China / Scribbled filefish (Aluterus scriptus) Xiaoliuqiu Island, Taiwan

Shane Gross / Map puffer fish (Arothron mappa) hiding inside a barrel sponge, off Flores, Indonesia.

Pascal Kobeh / Planehead / Common filefish (Stephanolepis hispidus), Canary Islands.

Pascal Kobeh / Japanese inflator filefish / Japanese inflator filefish (Brachaluteres ulvarum), Sulu sea, Philippines