Milan Radisics / Aerial shot of mining waste and other toxic by-products collected in dry stacks and a big pond, in a large copper mining and hydrometallurgical process plant complex near Gerena, Seville, Spain, Augu...

Espen Bergersen / Time lapse of people emptying plastic bags full of marine litter to show what has been collected during a beach clean, Tussoya, Troms, Norway, 2017.

Ingo Arndt / Vogelkop bowerbird (Amblyornis inornatus) decoration material (fruit and beetle elytra ) collected in order to attract females to his bower, Arfak Mountains, Irian Jaya, New Guinea, Indonesia.

Ingo Arndt / Vogelkop bowerbird (Amblyornis inornatus) decoration material (fungus) collected in order to attract females to his bower, Arfak Mountains, Irian Jaya, New Guinea, Indonesia.

Ingo Arndt / Vogelkop bowerbird (Amblyornis inornatus) decoration material (blue rotten wood) collected in order to attract females to his bower, Arfak Mountains, Irian Jaya, New Guinea, Indonesia.

Alex Mustard / Nudibranch (Flabellina lineata) in aquarium, taken in the field in Gulen, Norway. North East Atlantic Ocean. Collected for scientific research.

Pete Oxford / Head-hunted human skulls, collected by the Konyak Naga tribe, North East India, October 2014.

David Kjaer / Great bustard (Otis tarda) chicks hatched from eggs collected under licence from the Castilla-La Mancha region of Spain.

Sam Hobson / Blood samples collected by scientists working with urban goshawks (Accipiter gentilis). Berlin, Germany, May 2014. Nominated in the Melvita Nature Images Awards competition 2014.

Paul D Stewart / Male Large Blue Butterfly (Maculinea eutryphon / arion) collected in 1865. It is here surrounded by other extant UK blue butterfly species. The large Blue was first recorded as a British species in 17...

David Shale / Solenosmilia sp and eunicid polychaete and bamboo coral. Collected from coral sea mount near Dragon vent field on SW Indian Ridge, Indian Ocean.

David Shale / Pencil urchin (Cidaroid). Collected from coral sea mount near Dragon vent field on SW Indian Ridge, Indian Ocean.