Jen Guyton / Park ranger holding a Cape pangolin / Temminck's ground pangolin (Smutsia temminckii), rescued from poachers. This picture was taken shortly before freeing the pangolin. Gorongosa National Park, Moza...

Jen Guyton / Park ranger holding a Cape pangolin / Temminck's ground pangolin (Smutsia temminckii), rescued from poachers. This picture was taken shortly before freeing the pangolin. Gorngosa National Park, Mozam...

Sam Hobson / Scientist freeing Northern gannet (Morus bassanus) entangled in marine litter. Grassholm Island, Wales, UK. October

Sam Hobson / Scientists freeing Northern gannet (Morus bassanus) entangled in marine litter. Grassholm Island, Wales, UK. October 2015.

Sam Hobson / Scientist freeing Northern gannet (Morus bassanus) entangled in marine litter. Grassholm Island, Wales, UK. October

Sam Hobson / Scientist freeing Northern gannet (Morus bassanus) entangled in marine litter. Grassholm Island, Wales, UK. October

Sam Hobson / Scientist freeing Northern gannet (Morus bassanus) entangled in marine litter. Grassholm Island, Wales, UK. October

Sam Hobson / Scientist freeing Northern gannet (Morus bassanus) entangled in marine litter. Grassholm Island, Wales, UK. October

Sam Hobson / Researcher freeing juvenile Northern gannet (Morus bassanus) entangled in marine litter. Grassholm Island, Wales, UK. October

Nick Upton / Samantha Pickering placing a Brown long-eared bat (Plecotus auritus) in a cage on a heat pad to dry after freeing it from flypaper and washing at her rescue centre, Barnstaple, Devon, UK, October 2015...

Andrew Parkinson / Hermaness warden, Alastair Wilson, begins the long process of freeing an adult Gannet (Morus bassanus) that is seriously tangled in discarded fishing net. Shetland Islands, Scotland, UK, July.

David Tipling / Police officer dismantles illegal mist nets in olive grove in Dekelia Sovereign Base Area of Cyprus. Birds would have been trapped and sold as the food delicacy ambelopoulia. September 2011.

David Tipling / Officer from the British Sovereign Base Police at Dekeleia Cyrus extracting an illegally trapped Great Reed Warbler from a mist net in olive grove. Bird would be used to serve as a delicacy in resaura...

David Tipling / Officers from the British Sovereign Base Area Police anti trapping unit at Dekeleia extracting a Blackcap (Sylvia atricapilla) from an illegal trappers mist nest in Cyprus, September 2011

David Tipling / Christakis an officer from the British Sovereign Base Police at Dekeleia Cyprus, extracting an illegally trapped Blackcap from a mist net in olive grove. Bird would be used to serve as a delicacy in r...

David Tipling / Blackcap (Sylvia atricapilla) caught in trappers illegal mist net, with an officer from the British Sovereign Base Police at Dekeleia removing birds, Cyprus, September 2011

David Tipling / Red-backed Shrike (Lanius collurio) cut out from a trappers illegal mist net Cyprus, September 2011

David Tipling / Blackcap (Sylvia atricapilla) being released from limestick by using water to make lime more soluble Cyprus, September 2011

David Tipling / Martin Hellicar from Birdlife Cyprus, holding a limestrick with trapped Blackcap Cyprus, September 2011

David Tipling / Blackcap (Sylvia atricapilla) being released from limestick by using water to make lime more soluble Cyprus, September 2011

David Tipling / Blackcap (Sylvia atricapilla) being released from limestick by using water to make lime more soluble Cyprus, September 2011

Bryan and Cherry Alexander / Freeing Humpback whale (Megaptera novaeangliae) trapped in a fishing net. Newfoundland, Canada.

Jane Burton / Sable Border Collie whelping sequence: the bitch freeing puppy from foetal sack

Onne van der Wal / An October 2006 storm freeing yachts from their moorings to run ashore and be pounded by waves in Jamestown, Rhode Island, USA.

Onne van der Wal / An October 2006 storm freeing yachts from their moorings to run ashore and be pounded by waves in Jamestown, Rhode Island, USA.

Onne van der Wal / An October 2006 storm freeing yachts from their moorings to run ashore. A boy plays in the flooded road and is blown by the strong wind in Jamestown, Rhode Island, USA.

Onne van der Wal / An October 2006 storm freeing yachts from their moorings to run ashore and be pounded by waves in Jamestown, Rhode Island, USA.

Jack Dykinga / Sandhill crane (Antigone canadensis) freeing its legs from ice as dawn light warms the pond, Bernardo Wildlife Area, New Mexico, USA. January.

Jack Dykinga / Two Sandhill cranes (Antigone canadensis) freeing their legs from ice as dawn light warms their pond, Bernardo Wildlife Area, New Mexico, USA. January.