Michael Hutchinson / Money spider (Tenuiphantes sp) tiptoeing behaviour on daisy. Spiders can stand on tiptoes and produced silk to 'balloon' and travel with the airflow. In this image the silk dragline and feinte...

Chris & Monique Fallows / Long-beaked common dolphin (Delphinus capensis) breaching in front of large ship during sardine run, East London, South Africa, June.

James Christensen / Anchor Coralsnake (Micrurus ancoralis), Septimo Paraiso Cloud Forest Reserve, Mindo, Ecuador

Michael Pitts / British Admiralty anchor - mid 1750's - possibly from the wreck of HMS Colossus - wrecked 1798. St Mary's Roads. Isles of Scilly. England, UK, August 2013.

Franco Banfi,Franco Banfi / Anchor on Wreck Vassilios T, Vis Island, Croatia, Adriatic Sea, Mediterranean

Juergen Freund / Bean shaped polyps of an Anchor coral (Euphyllia ancora), a large polyp stony (LPS) coral. Misool, Raja Ampat, West Papua, Indonesia.

Shane Gross / Boat anchor digs into a coral reef in The Philippines.

Ashley Cooper / Storm Gertrude, with winds of up to 132 mph resulted in this Trinity House 'Cardinal Mark' ripped off its steel anchor chain and washed up on Walney Island. England, UK. January 2016

Tony Wu / Threadsail filefish (Stephanolepis cirrhifer) two latched on to rope twhile resting, Toyama Prefecture, Honshu, Japan. March.

Michael Hutchinson / Money spider (Tenuiphantes sp) tiptoeing behaviour on dandelion seed head. Spiders can stand on tiptoes and produced silk to 'balloon' and travel with the airflow. In this image the silk dragl...

David Fleetham / Bugis schooner, live-aboard dive vessel, at anchor in a limestone island lagoon, Uranie Island, Raja Ampat, West Papua, Indonesia.

David Fleetham / Panoramic view of live-aboard dive vessel at anchor in a limestone island lagoon, Uranie Island, Raja Ampat, West Papua, Indonesia.