Tui De Roy / Short tailed albatross (Phoebastria albatrus) subadult with fish-hook and monofilament line embedded in throat. Tsubamezaki, Torishima Island, Japan. December.

Tui De Roy / Short tailed albatross (Phoebastria albatrus) subadults courting, one with fish-hook and monofilament line embedded in throat. Tsubamezaki, Torishima Island, Japan. December.

Tui De Roy / Waved albatross (Phoebastria irrorata) on nest, with fish hook in throat, Punta Suarez, Espanola Island, Galapagos.

Alex Hyde / Lesser burdock (Arctium minus) close up of seed hooks that catch on animal fur, allowing the seedhead to be transported, Peak District National Park, Derbyshire, UK. February.

Jeff Rotman / Live Bigeye Thresher shark {Aliopa superciliosus} caught on longline hook, Cocos Island, Costa Rica, Pacific Ocean

Jeff Rotman / Juvenile Blacktip shark close up {Carcharhinus limbatus} caught on longline hook, Cocos Island, Costa Rica, Pacific Ocean

Nigel Cattlin / Cleavers (Galium aparine) burrs with hooks tha attach to animal fur and clothes for dispersal, close-up. England, UK. July.

Nigel Cattlin / Cleavers (Galium aparine) burrs with hooks tha attach to animal fur and clothes for dispersal, close-up. England, UK. July.

Nigel Cattlin / Cleavers (Galium aparine) burrs with hooks tha attach to animal fur and clothes for dispersal. England, UK. July.

Nigel Cattlin / Cleavers (Galium aparine) seedling with cotyledons and early leaf rosettes, growing as garden weed.

David Fleetham / Oceanic whitetip shark (Carcharhinus longimanus) that has swallowed a hook and is trailing the fishing line. Hawaii, May 2004.

Pal Hermansen / King eider duck (Somateria spectabilis) female with fishing hook caught in beak / mouth. Note the swollen head. Batsfjord, Finnmark, Norway, March.