Cheryl-Samantha Owen / Dennis Chikodze hoists the black flag at the Kalk Bay post. It provides a warning to ocean goers that visibility is bad and the shark spotters may not see a white shark if it does enter the bay. West...

Onne van der Wal / "Freedom" hoists its spinnaker while racing in the 12 Metre World's Competition 2005, Newport, Rhode Island, USA.

Onne van der Wal / Pressure washing cruising yacht "Lily Pad" at the end of the season.

Onne van der Wal / Pressure washing a cruising yacht at the end of the season.

Onne van der Wal / Pressure washing cruising yacht "Lily Pad" at the end of the season.

Onne van der Wal / Pressure washing a cruising yacht at the end of the season.

Rick Tomlinson / Coastguard helicopter hoists a crewman up to safety from a ship's liferaft during a practise rescue.

Rick Tomlinson / Coastguard helicopter hoists a crewman up to safety from a ship's liferaft during a practise rescue.

Rick Tomlinson / Coastguard helicopter hoists a crewman up to safety.

Onne van der Wal / 12 metre "Onawa" in the travel hoist at Newport Shipyard, USA.

Rick Tomlinson / Farr 40 "Appreciation Conspiracy" hoists the spinnaker after rounding the windward mark, Key West, 2000.

Erwan Quéméré / Fishing trawler hauled out on a travel hoist for annual maintenance. Lechiagat boatyard, South Brittany, France.

John Cancalosi / Tarantula Hawk Wasp (Pepsis genus) perching on foliage, Chiricahua mountains. Arizona, USA

Tom Vezo / Scaled quail {Callipepla squamata} Santa Rita Mts, Arizona, USA

Tom Vezo / Scaled quail {Callipepla squamata} Arizona, USA

Tom Vezo / Red tailed hawk juvenile soaring in flight {Buteo jamaicensis} Arizona, USA, North America

Tom Vezo / Harris hawk perched {Parabuteo unicinctus} Tucson, Arizona, USA

John Cancalosi / Shar pei puppies (Canis familiaris). Arizona, USA

John Cancalosi / Killdeer plover with eggs, Sonoran Desert, Arizona, USA.

Tom Vezo / Cactus wren pair {Campylorhynchus brunneicapillus}Green valley, Arizona, USA