Solvin Zankl / Seeds of Water avens (Geum rivale), Europe. Water aven seeds have numerous hairs, which enable dispersal by wind, as well as a long hooked tail formed by the style, which readily attaches to mammal fu...

Jeff Rotman / Diver examining hooked Swordfish {Xiphias gladius} caught on longline fishing hook, underneath boat, Cocos Island, Costa Rica, Pacific Ocean, WHS

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) seedling with cotyledons and early leaf rosettes, growing as garden weed.

Shane Gross / Green sea turtle (Chelonia mydas), drowned, hooked and tangled in fishing line as bycatch. Bahamas.

Nick Upton / 'Ghost Gear', abandoned fishing net and frayed plastic ropes, found floating in the sea and being hooked out of the water by a member of the Cornwall Seal Group Research Trust to lessen the ri...

Ashley Cooper / Southern giant petrel (Macronectes giganteus) on the beach at Gold Harbour, South Georgia, Southern Ocean. February.

Ashley Cooper / Brown skua (Stercorarius antarcticus) on the beach on Prion Island, South Georgia, Southern Ocean.

David Fleetham / Grey reef shark (Carcharhinus amblyrhynchos) hooked with fishing line, Hawaii.

Jiri Lochman / Crested tern (Sterna bergii) juvenile entangled in a fishing line, likely cut off by a fisherman after the bird swallowed the hooked bait. Australia.

Jiri Lochman / Crested tern (Sterna bergii) juvenile, entangled in a fishing line, likely cut off by a fisherman after the bird swallowed the hooked bait Australia.