A predatory stonefish (Synanceia verrucosa) lies camouflaged in the sandy seafloor of Komodo National Park, Indonesia. This is the most venomous fish on Earth but uses its venom only for defensive purposes.

A predatory stonefish (Synanceia verrucosa) lies camouflaged in the sandy seafloor of Komodo National Park, Indonesia. This is the most venomous fish on Earth but uses its venom only for defensive purposes.

Aerial of La Gueule du Monstre (the Monster's Mouth) cave, Rurutu, Austral islands, French Polynesia, South Pacific, Pacific

Aerial of La Gueule du Monstre (the Monster's Mouth) cave, Rurutu, Austral islands, French Polynesia, South Pacific, Pacific

Aerial of La Gueule du Monstre (the Monster's Mouth) cave, Rurutu, Austral islands, French Polynesia, South Pacific, Pacific

Wolf fish (Anarhichas lupus), head in profile with mouth open, St Abbs, Scotland, UK North Sea

Yagim Mask at the Metropolitan Museum of Art, New York, USA. Yagim Mask, 1920-25 Vancouver Island, British Columbia. Wood, paint. George Walkus (kwakwaka'wakw, ca 1875-1968). A furtive aggressive sea creature known as Yagim was part of the dramatic Tseyka performance cycle, which took place during the dark winter when life on the North West coast moves largely indoors