Beachside at Rhossili Bay, with the wreck of the Helvetia buried in the sand and Worm's Head on the horizon, Rhossili Bay, Gower, Wales, United Kingdom, Europe

Beachside at Rhossili Bay with the wreck of the Helvetia buried in the sand, and Worm's Head on the horizon, Gower Peninsula, near Swansea, Wales, United Kingdom, Europe

An adult mudskipper, subfamily Oxudercinae, in mud burrow on the mud flats of Vansittart Bay, Kimberley, Western Australia, Australia, Pacific

An adult mudskipper, subfamily Oxudercinae, in mud burrow on the mud flats of Vansittart Bay, Kimberley, Western Australia, Australia, Pacific

An adult mudskipper, subfamily Oxudercinae, in mud burrow on the mud flats of Vansittart Bay, Kimberley, Western Australia, Australia, Pacific

Businessmen hiding their heads in the sand, composite image

Polar bears in the wild. A powerful predator and a vulnerable or potentially endangered species, Manitoba, Canada

Atlantic stargazer(Uranoscopus scaber). He lives buried in the sand, with only his two eyes and his mouth sticking out of the bottom. Fish of the Canary Islands, Tenerife.