Juergen Freund / Blue-lined fangblenny (Plagiotremus rhinorhynchos) hiding in a plastic container, they usually hide in deserted worm tubes or other small holes, North Sulawesi, Indonesia.

Magnus Lundgren / Wild Wonders of China / Stellar rockskipper (Entomacrodus stellifer) hiding in a barnacle. Sai Kung East Country Park, Hong Kong, China.

David Fleetham / Spinyhead blenny (Acanthemblemaria spinosa) in hard coral, Netherlands Antilles, Bonaire, Caribbean.

Alex Mustard / Tompot blenny (Parablennius gattorugine) portrait, Swanage Pier, Swanage, Dorset, UK, English Channel, August

Alex Mustard,Alex Mustard / A signal blenny (Emblemaria hypacanthus) displays its showy dorsal fin as it extends out of its tube home. La Paz, Mexico. Sea Of Cortez, East Pacific Ocean.

Alex Mustard / 2020VISION / Portrait of Tompot blenny (Parablennius gattorugine) male in bright breeding colours, Swanage Pier, Dorset, UK, July

Chris Newbert / Freckle Face Blenny (Istiblennius chrysospilos) in burrow, five feet deep, Solomon Islands

Magnus Lundgren / Wild Wonders of China / Striped poison-fang blenny (Meiacanthus grammistes) Xiaoliuqiu Island, Taiwan. Venomous species.

Magnus Lundgren / Wild Wonders of China / Striped poison-fang blend (Meiacanthus grammistes) Xiaoliuqiu Island, Taiwan

Pascal Kobeh / Blue-striped blenny (Plagiotremus rhinorhynchos) hiding in a sponge, Sulu sea, Philippines

Georgette Douwma / Striped poison fang blenny (Meiacanthus grammistes) in a bottle. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Striped poison-fang blenny (Meiacanthus grammistes) swimming out of discarded bottle home, surrounded by rubbish, Sulawesi, Indonesia. November.