Juergen Freund / Wide-angle timelapse of Sand bubbler crabs (Dotillidae) feeding, filtering detritus and plankton from sand and discarding the processed sand as pellets, which cover the beach, Wet Tropics World Herita...

Juergen Freund / Sand bubbler crabs (Dotillidae) feeding, filtering detritus and plankton from sand and discarding the processed sand as pellets, which cover the beach, Wet Tropics World Heritage Area, Cape Tribulatio...

Juergen Freund / Sand bubbler crab (Dotillidae) feeding, filtering detritus and plankton from sand and discarding the processed sand as pellets, which cover the beach, Wet Tropics World Heritage Area, Cape Tribulation...

Roger Powell / Pair of European Bee-eater (Merops apiaster) on a bank above their nest hole in front of flowers. Note regurgitated pellets of insect remains. Alentejo, Portugal, April.

Wild Wonders of Europe / Ruiz / Fallen leaves, pine needles animal fecal pellets in woodland on Stribrne Steny (459m) Hrensko, Ceske Svycarsko / Bohemian Switzerland National Park, Czech Republic, November 2008

Juergen Freund / Timelapse of Sand bubbler crabs (Dotillidae) feeding, filtering detritus and plankton from sand and discarding the processed sand as pellets, which cover the beach, Wet Tropics World Heritage Area, Ca...

Juergen Freund / Sand bubbler crab (Dotillidae) feeding, filtering detritus and plankton from sand and discarding the processed sand as pellets, which cover the beach, Wet Tropics World Heritage Area, Cape Tribulation...

Juergen Freund / Sand bubbler crab (Dotillidae) feeding, filtering detritus and plankton from sand and discarding the processed sand as pellets, which cover the beach, Wet Tropics World Heritage Area, Cape Tribulation...

Juergen Freund / Sand bubbler crab (Dotillidae) feeding, filtering detritus and plankton from sand and discarding the processed sand as pellets, which cover the beach, Wet Tropics World Heritage Area, Cape Tribulation...

Adrian Davies / Barn owl (Tyto alba) pellets, contents of approximately six pellets containing skulls and bones of voles, mice and shrews, and cockchafer beetle. UK. March.

Matthew Maran / Dairy cows on organic farm feeding on pellets during milking, East Devon, England, UK, July.

Nick Upton / Hedgehog (Erinaceus europaeus) feeding on meat-based hedgehog pellets in a home-made hedgehog feeder box with a narrow entrance designed to exclude cats and foxes, at night, suburban garden, Chippenha...

Nick Upton / Hedgehog (Erinaceus europaeus) feeding on meat-based hedgehog pellets in a home-made hedgehog feeder box with a narrow entrance designed to exclude cats and foxes, at night, suburban garden, Chippenha...

Nick Upton / Hedgehog (Erinaceus europaeus) feeding on meat-based hedgehog pellets in a home-made hedgehog feeder box with a narrow entrance designed to exclude cats and foxes, at night, suburban garden, Chippenha...

Nick Upton / Hedgehog (Erinaceus europaeus) leaving a home-made hedgehog feeder box with a narrow entrance, designed to exclude cats and foxes, after feeding on meat-based hedgehog pellets, at night, suburban gard...

Nick Upton / Hedgehog (Erinaceus europaeus) feeding on meat-based hedgehog pellets in a home-made hedgehog feeder box with a narrow entrance designed to exclude cats and foxes, at night, suburban garden, Chippenha...

Nick Upton / Hedgehog (Erinaceus europaeus) feeding on meat-based hedgehog pellets in a home-made hedgehog feeder box with a narrow entrance designed to exclude cats and foxes, at night, suburban garden, Chippenha...

Nick Upton / Hedgehog (Erinaceus europaeus) entering a home-made hedgehog feeder box to feed on meat-based hedgehog pellets at night, suburban garden, Chippenham, Wiltshire, UK, August. Taken with a remote camera...

Ingo Arndt / Rat bait, South Georgia Heritage Trust Rat Eradication Project, South Georgia 2011

Ingo Arndt / Rat bait bags, South Georgia Heritage Trust Rat Eradication Project, South Georgia, March 2011

Ingo Arndt / Guanaco faecal pellets at midden {Lama guanicoe} Torres del Paine NP, Patagonia, Chile

Juergen Freund / Sand bubbler (Dotillidae) crab making sand pellets, Daintree, Queensland, Australia

Juergen Freund / Sand bubbler crab (Dotillidae) sand pellets and hole on beach, Daintree, Queensland, Australia

Juergen Freund / Sand bubbler crab (Dotillidae) sand pellets and hole on beach, Daintree, Queensland, Australia

Juergen Freund / Sand bubbler crab (Dotillidae) sand pellets and holes on beach, Daintree, Queensland, Australia

Juergen Freund / Sand bubbler crab (Dotillidae) sand pellets and holes on beach, Daintree, Queensland, Australia

Yukihiro Fukuda / Feral domestic rabbit (Oryctolagus cuniculus) urinating, with pellets of faeces on ground also. Okunojima Island, also known as Rabbit Island, Hiroshima, Japan.

Roland Seitre / Fecal pellets of Greater bilby (Macrotis lagotis) Estrelha Downs, Boulia, Queensland, Australia, Vulnerable species

Juergen Freund / Sand bubbler crab (Dotillidae) sand pellets and holes, Daintree, Queensland, Australia

Juergen Freund / Sand bubbler crab (Dotillidae) sand pellets and hole, Daintree, Queensland, Australia

Juergen Freund / Sand bubbler crab (Dotillidae) sand pellets and holes, Daintree, Queensland, Australia

Juergen Freund / Sand bubbler crab (Dotillidae) sand pellets and hole, Daintree, Queensland, Australia

Juergen Freund / Sand bubbler (Dotillida) crab making sand pellets, Daintree, Queensland, Australia

Juergen Freund / Sand bubbler crab (Dotillidae) sand pellets and hole on beach, Daintree, Queensland, Australia

Juergen Freund / Sand bubbler crab (Dotillidae) sand pellets and hole on beach, Daintree, Queensland, Australia

Mark Hamblin / 2020VISION / Bag of wood pellets used for fuel. Alvie estate, Scotland, UK, May.

Eric Medard / Little owl (Athene noctua) coughing up a pellet, France, July

Eric Medard / Little owl (Athene noctua) coughing up a pellet, France, July

Eric Medard / Little owl (Athene noctua) during the day on a wall, coughing up a pellet, France, October

Eric Medard / Montagu's Harrier (Circus pygargus) male coughing up pellet, France, June

Todd Mintz / Snowy owl (Bubo scandiaca) male expelling pellet on the Canadian prairie, Saskatchewan, Canada, March, sequence 3/3

Todd Mintz / Snowy owl (Bubo scandiaca) male expelling pellet on the Canadian prairie, Saskatchewan, Canada, March, sequence 2/3

Todd Mintz / Snowy owl (Bubo scandiaca) male expelling pellet on the Canadian prairie, Saskatchewan, Canada, March, sequence 1/3

Laurie Campbell / Tawny owl (Strix aluco) regurgitated pellet, Berwickshire, Scotland, October

Andy Rouse / Barn Owl (Tyto alba) pellets under nestbox (sign of occupancy) UK

Juergen Freund / Aquaculture - Fisherman feeding soy pellets to fish in sea cages, includes Milkfish (Chanos chanos) and Pomfret (Pompano sp) Sarangani, Philippines, April 2010.

Juergen Freund / Sea cages holding different types of food fish fed on soya pellets, include Milkfish (Chanos chanos) and Pomfret (Pompano sp) Sarangani, Philippines, April 2010.

Murray Cooper / Ghost Crab (Ocypode sp) on beach surrounded by sand pellets which are by-products from the crab's feeding, Ecuador

Adrian Davies / Regurgitated pellet of Tawny owl (Strix aluco) showing remains of prey, Sussex, England, UK

Tom Marshall / New Zealand / Sacred kingfisher (Todiramphus sancta vagans) ejecting pellet by regurgitating, Avon-Heathcote Estuary, Canterbury, New Zealand

Konstantin Mikhailov / Pellets of Caucasian Snowcock (Tetraogallus caucasicus) Teberdinsky Nature Preserve, Caucasian highlands, Western Caucasus, Russia, July 2006

Jane Burton / Pregnant sooty fawn female rabbit with lots to eat - carrots, green beans, rabbit pellets

Philippe Clement / Red rumped swallow's nest in building (Cecropis / Hirundo daurica) made of mud pellets, Spain

Kevin J Keatley / Barn owl pellets in old nest site {Tyto alba} small rodent bones visible in pellets, UK

Elio Della Ferrera / Common shrew bones {Sorex arabeus} found in pellet of Eurasian pygmy owl {Glaucidium passerinum}

Philippe Clement / Regurgitated Great horned owl pellets on taiga forest floor {Bubo virginianus} Denali NP, Alaska, USA.

Philippe Clement / Owl pellet showing wing cases of beetles, Belgium

Philippe Clement / Tawny owl pellet {Strix aluco} showing remains of mouse skeleton, Belgium

Philippe Clement / Tawny owl pellet {Strix aluco} showing remains of mouse skeleton, Belgium

David Shale / Common garden snails {Helix aspersa} and slug-pellets. Europe

David Shale / Common Garden snails {Helix aspersa} and slug pellets, Europe

Kim Taylor / Kestrel {Falco tinnunculs} pellets containing mouse remains. UK.

Kim Taylor / Kestrel {Falco tinnunculs} pellets containing mouse remains. UK.

Kim Taylor / Little owl {Athene noctua} pellets containing Dor beetle parts {Geotrupes stercorarius}

Richard Du Toit / Droppings of Guenther's dik dik {Madoqua guentheri} Laikipia, Kenya

Konrad Wothe / Barn Owl (Tyto alba) owl pellets made of regurgitated bones and fur, Germany

Solvin Zankl / Norway lemming faecal pellets {Lemmus lemmus} Norway

Mike Read / Regurgitated Pellets of Barn owl, Tawny owl, Short eared owl, Long eared owl and Little owl side-by-side for comparison

Niall Benvie / Common buzzard pellet {Buteo buteo} Beinn Eighe NNR, Scotland, UK

Mike Read / Contents of regurgitated Barn owl pellet {Tyto alba} UK. remains of woodmouse, vole, birds and short-tailed vole

Nigel Bean / Woodrat faecal pellets + Juniper seeds preserved from late Pleistocene period AZ, USA found in preserved Woodrat midden {Neotoma sp}

Michael Quinton / Northern Hawk Owl (Surnia ulula) pellets, Alaska

Nature Production / Case bearing leaf beetle {Chlamisus spilotus} (center) mimic hornworm's pellets, Japan

Philippe Clement / Barn owl (Tyto alba) regurgitated pellets on hay showing skulls and bones of mice. Belgium

Philippe Clement / Barn owl (Tyto alba) regurgitated pellets showing close-up detail of mouse skull, hair and bones found inside. Belgium

Philippe Clement / Barn owl (Tyto alba) regurgitated pellets showing close-up detail of mouse skull, hair and bones found inside. Belgium

Philippe Clement / Barn owl (Tyto alba) regurgitated pellets on hay bales in barn. Belgium

Philippe Clement / Barn owl (Tyto alba) regurgitated pellets showing bones and skulls of mice. Belgium.

David Kjaer / Rock Ptarmigan droppings {Lagopus mutus} Highlands Scotland, UK

Mike Read / Pellets of Barn owl Tawny owl Little owl Short eared owl Long eared owl (top L to btm R)

Pete Oxford / Collected nurdles, toxic plastic pellets, washed up ashore, after community based clean up. Betty's Bay, Western Cape, South Africa.

Pete Oxford / Nurdles, toxic plastic pellets, washed up ashore. Betty's Bay, Western Cape, South Africa.

Pete Oxford / Nurdles, toxic plastic pellets, floating between seaweed in shallow coastal waters. Bettys Bay, Western Cape, South Africa.

Pete Oxford / Collected nurdles, toxic plastic pellets, washed up ashore, after community based clean up. Betty's Bay, Western Cape, South Africa.

Pete Oxford / Nurdles, toxic plastic pellets, washed up ashore. Betty's Bay, Western Cape, South Africa.

Pete Oxford / Collected nurdles, toxic plastic pellets, washed up ashore, after community based clean up. Betty's Bay, Western Cape, South Africa.

Edwin Giesbers / Researchers examining Raptor pellets to identify eaten prey. Part of a 60 year long-term study led by Fred Koning to monitor raptors and their nests in a 3,400 hectare area of coastal dunes. Near Amst...

Nigel Cattlin / White polluting plastic pellets or nurdles deposited on a sandy beach in the Arabian Gulf, Abu Dhabi

Doug Gimesy / Carolyn Donovan (certified emergency critical care veterinary nurse from the Peninsula Vet Emergency & Referral Hospital) counts the faecal pellets from a koala (Phascolarctos cinereus) in care and be...