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...

Alex Mustard / Striped mackerel (Rastrelliger kanagurta) shoal swimming with open mouths, filtering for zooplankton. Marsa Shouna, Port Ghalib, Marsa Alam, Egypt. Red Sea

Alex Mustard / Striped mackerel (Rastrelliger kanagurta) mouth wide open as it swims through the water, filtering zoopankton with its gill rakers. Marsa Shouna, Port Ghalib, Marsa Alam, Egypt. Red Sea

Alex Mustard,Alex Mustard / Whaleshark (Rhincodon typus) swimming and filtering fish eggs from the water. A behaviour known as ram-feeding. Isla Mujeres, Quintana Roo, Yucatan Peninsular, Mexico. Caribbean Sea.

Linda Pitkin / 2020VISION / Dead man's fingers (Alcyonium digitatum), growing on rock faces below the kelp, St Abbs (St Abbs and Eyemouth Voluntary Marine Reserve), Berwickshire, Scotland, UK, October 2011. Did you know? Soft co...

Wild Wonders of Europe / Cairns / Sun filtering through mist at dawn silhouetting trees, Bergslagen, Sweden, June 2009

Jack Dykinga / Antelope Canyon, a slot canyon with eroded sandstone patterns and rays of sunlight filtering in, Navajo Reservation, Arizona, USA

Konrad Wothe / Sunlight filtering through Spruce forest, Bavaria, Germany

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...

Ashley Cooper / Humpback whales (Megaptera novaeangliae) feeding on Krill in Wilhelmena Bay, Antarctic Peninsula

Alex Mustard / Striped mackerel (Rastrelliger kanagurta) shoal swimming with open mouths, filtering for zooplankton. Marsa Shouna, Port Ghalib, Marsa Alam, Egypt. Red Sea

Bruno D'Amicis / Light filtering through clouds on rugged southern slope of Mount Prena in the Gran Sasso massif. Gran Sasso NP, Central Apennines, Abruzzo, Italy, September.

Alex Mustard / Striped mackerel (Rastrelliger kanagurta) with mouths wide open as they swim through the water, filtering zoopankton with their gill rakers. Marsa Shouna, Port Ghalib, Marsa Alam, Egypt. Red Sea

Alex Mustard / Striped mackerel (Rastrelliger kanagurta) with mouths wide open as they swim through the water, filtering zoopankton with their gill rakers. Marsa Shouna, Port Ghalib, Marsa Alam, Egypt. Red Sea

Roger Powell / Common Pochard (Aythya ferina) feeding by filtering food from the waters surface. Martin Mere WWT Reserve, Lancashire, UK. November.

SCOTLAND: The Big Picture / Scots pine (Pinus sylvestris) forest with sun filtering through mist, Alvie Estate, Kincraig, Cairngorms National Park, Scotland, UK, June

SCOTLAND: The Big Picture / Scots Pine forest (Pinus sylvestris) with early morning misty light filtering through the forest. Cairngorm National Park, Highlands, Scotland, UK, October 2014.

SCOTLAND: The Big Picture / Sun filtering through pine woodland on autumn morning, Rothiemurchus, Cairngorms National Park, Scotland, UK, September.

Georgette Douwma / Sea apple (Pseudocolochirus violaceus) on coral reef. It feeds by filtering the water column with its tentacular crown, successively bringing each arm into its mouth to deliver food particles. Komod...

Bruno D'Amicis / Sun filtering through sand during severe sandstorm. Grand Erg Oriental, Tunisia

Doug Perrine / Basking shark (Cetorhinus maximus) feeding by straining plankton through gill rakers. Land's End, Cornwall, UK, North Atlantic Ocean.

Doug Perrine / Basking shark (Cetorhinus maximus) feeding by straining plankton through gill rakers. Land's End, Cornwall, UK, North Atlantic Ocean.

Enrique Lopez-Tapia / Graphite mine near the Andasibe-Mantadia National Park, one of the environmental problems affecting the ecosystem of the rainforest. Madagascar, March 2005.

Norbert Wu / Mangrove (Rhizophoraceae) and Eelgrass (Zostera sp) filter out sediment, Bahamas, Caribbean

Norbert Wu / Mangrove (Rhizophoraceae) and Eelgrass (Zostera sp) filter out sediment, Bahamas, Caribbean

Tui De Roy / White-cheeked pintail (Anas bahamensis) filtering water through beak - male. Galapagos Islands, Educaor, June.

Terry Whittaker / 2020VISION / Reed bed at sunset, South Swale Nature Reserve, Kent, England, UK, December. Did you know? Wetlands globally provide trillions of dollars' worth of services such as absorbing carbon and filtering wate...

Brent Stephenson / A large crack in an iceberg being lit by deep blue light filtering through the berg. Yalour Islands, Antarctic Peninsula, Antarctica, December.

Terry Whittaker / 2020VISION / Reedbeds at dawn with Coot (Fulica atra) in mist, Lakenheath Fen RSPB Reserve, Suffolk, UK, May. Did you know? Reedbeds can be used for filtering pollution and sewage from water.

Daniel Heuclin / Caribbean / American Flamingo (Phoenicopterus ruber) close-up of head, feeding by filtering water. Captive. Florida, USA, October.

Daniel Heuclin / American Flamingo (Phoenicopterus ruber ruber) feeding by filtering water through its beak. Captive. Endemic to Columbia, Galapagos Islands, Caribbean and Venezuela.

Peter Cairns / Autumnal dawn light filtering through pine forest. Cairngorms National Park, Scotland, October.

Matthias Breiter / Sunrays filtering through clouds, Fivemile Island, Alaska

Bryan and Cherry Alexander / Woman filtering Moose milk at Sumarokova Moose Farm. Kostroma, Russia, 2002.

Mitsuaki Iwago / Sunlight filtering through rainforest, Borneo, Malaysia

Georgette Douwma / Sea apple (Pseudocolochirus violaceus), a sea cucumber, feeds by filtering the water column with its tentacular crown, successively bringing each arm into its mouth to deliver food particles. Komodo N...

Georgette Douwma / Sea apple (Pseudocolochirus violaceus), a sea cucumber, feeds by filtering the water column with its tentacular crown, successively bringing each arm into its mouth to deliver food particles. Komodo N...

Georgette Douwma / Sea apple (Pseudocolochirus violaceus), a sea cucumber, feeds by filtering the water column with its tentacular crown, successively bringing each arm into its mouth to deliver food particles. Komodo N...

Georgette Douwma / Sea apple (Pseudocolochirus violaceus), a sea cucumber, feeds by filtering the water column with its tentacular crown, successively bringing each arm into its mouth to deliver food particles. Komodo N...

Georgette Douwma / Sea apple (Pseudocolochirus violaceus), a sea cucumber, feeds by filtering the water column with its tentacular crown, successively bringing each arm into its mouth to deliver food particles. Komodo N...

Georgette Douwma / Burrowing sea cucumber (Neothyonidium magnum), buried deep in the sand, feeds by filtering the water column with its tentacular crown, successively bringing each arm into its mouth to deliver food par...

Georgette Douwma / Burrowing sea cucumber (Neothyonidium magnum), buried deep in the sand, feeds by filtering the water column with its tentacular crown, successively bringing each arm into its mouth to deliver food par...

Georgette Douwma / Burrowing sea cucumbers (Neothyonidium magnum) one white and one black, buried deep in the sand, feeds by filtering the water column with its tentacular crown, successively bringing each arm into its...

Georgette Douwma / Burrowing sea cucumber (Neothyonidium magnum), buried deep in the sand, feeds by filtering the water column with its tentacular crown, successively bringing each arm into its mouth to deliver food par...

Aflo / N-14106 Woodland river landscape with rays of light filtering through trees, Oregon, USA.

Wild Wonders of Europe / Cairns / Sun filtering through mist at dawn, Bergslagen, Sweden, June 2009

Wild Wonders of Europe / Cairns / Sun filtering through mist at dawn, Bergslagen, Sweden, June 2009

Andrew Parkinson / Sika deer (Cervus nippon) calf lit by gentle morning sunlight filtering through a thick mist, Arne RSPB Reserve, Dorset, UK

Luiz Claudio Marigo / Sunlight filtering through trees of "várzea" flooded Amazon forest on the banks of the Amazonas River, Amazonas State, Northern Brazil.

Juergen Freund / Looking up to sea surface with sun rays filtering through, Rowley Shoals, Western Australia

Norbert Wu / Mangrove (Rhizophoraceae) forest, roots clear water by filtering out sediments, Raja Ampat Islands, Indonesia

Theo Allofs / Sunrays filtering through tree and fog at sunrise, Rio Negro, Pantanal, Brazil

Willem Kolvoort / Sunlight filtering through leaves of Yellow water lily (Nuphar lutea) lake in central Holland

Willem Kolvoort / Sunlight filtering through tree roots hanging in sand-winning pit, Holland

Willem Kolvoort / Sunlight filtering through leaves of Yellow water lily (Nuphar lutea) lake in central Holland

Willem Kolvoort / Underwater view of floating (Algae) bed in Autumn, with sunlight filtering into murky Peatbog lake, Central Holland

Jabruson / Sun filtering through fern forest canopy, Mountains of the Moon, Virunga NP, Democratic Republic of Congo (formerly Zaire)

Willem Kolvoort / Swan Mussel (Anodonta cygnaea) with semi-aquatic Weevil. Lake Naarden, Holland. Mussel is filtering water to feed on plankton.

Willem Kolvoort / Swan Mussel (Anodonta cygnaea) bog at Lake Naarden, Holland. Mussel is filtering water to feed on plankton.

Jim Brandenburg / Sunlight filtering through trees, Minnesota

Jaymi Heimbuch / Sunlight filtering through trees onto ferns in forest, Russian River, California

Michael Quinton / Sunlight filtering through clouds over boreal pond, Alaska

Flip Nicklin / Sunlight filtering through clouds, Atlantic Ocean

Pedro Narra / Person separating and filtering dry pollen plants or hashish resin over a fine cloth, a process used in the production of hashish, Quetta region, Pakistan. October, 2023.

Pedro Narra / Man sitting indoors filtering Cannabis pollen through a cloth into a bucket, part of the traditional method of producing Hashish, northern Morocco. January, 2024.

Pedro Narra / Man sitting indoors filtering Cannabis pollen through a cloth into a bucket, part of the traditional method of producing Hashish, northern Morocco. January, 2024.

Jack Dykinga / Giant redwoods (Sequoia sempervirens) silhouetted against morning fog filtering sun's rays, Del Norte Coast Redwoods State Park, California, USA.

David Fleetham / Reef manta rays (Mobula alfredi) feed over baskets of lights used to attract plankton at night, Kona Coast, Big Island, Hawaii, Pacific Ocean.

Lukas Schaefer / Sunrays filtering through the trees as spray from a waterfall rolls past, Ahrntal Valley, Alps, South Tyrol, Italy, June.

Jack Dykinga / Grand Prismatic Geyser, Middle Geyser Basin, during a frigid sunrise, with steam filtering through the Lodgepole pines (Pinus contorta) in the background, Yellowstone National Park, USA, September, 20...

Jack Dykinga / Grand Prismatic Geyser, Middle Geyser Basin, at sunrise, with steam filtering through the Lodgepole pines (Pinus contorta) in the background, Yellowstone National Park, USA, September, 2021.

Jack Dykinga / Old growth Redwood (Sequoia sempervirens) temperate rainforest with sunrays filtering through trees on a foggy morning, Del Norte Redwoods State Park, California, USA.

Oscar Dewhurst / Black-legged kittiwake (Rissa tridactyla) adult perched on a ledge of the Tyne Bridge, with light filtering through gaps in the bridge. Newcastle, UK. June. Highly Commended in Bird Photographer of th...