Jordi Chias / Red Sea anemonefish (Amphiprion bicinctus) in their home, a Sea anemone (Heteractis magnifica), on a coral reef. Big Brother island, Red Sea. Egypt.

Alex Mustard / Portrait of Red Sea anemonefish (Amphiprion bicinctus) against open water. Abu Nuhas, Strait of Subal, Egypt. Gulf of Suez, Red Sea.

Alex Mustard / Red Sea anemonefish (Amphiprion bicinctus) in Magnificent sea anemone (Heteractis magnifica), which has closed up in the late afternoon, on coral reef under stormy seas. St Johns Reef. Egypt. Red Sea.

Alex Mustard / Red Sea anemonefish (Amphiprion bicinctus) in front of magnificent sea anemone. Anemone City, Ras Mohammed Marine Park, Sinai, Egypt. Gulf of Aqaba, Red Sea.

Michael Pitts / Orange fin anemonefish {Amphiprion chrysopterus} in soft coral

Philippe Clement / Japanese bitter-orange (Poncirus trifoliata / Citrus trifoliata) citrus fruit in tree, October

Ashley Cooper / Dying Orange trees that no longer have water to irrigate them during severe drought, near Bakersfield, California, USA, October 2014

Ashley Cooper / Dying Orange trees that no longer have water to irrigate them during severe drought, near Bakersfield, California, USA, October 2014

Ashley Cooper / Dying Orange trees that no longer have water to irrigate them during severe drought, near Bakersfield, California, USA, October 2014

Ashley Cooper / Dying Orange trees that no longer have water to irrigate them during severe drought, near Bakersfield, California, USA, October 2014

Ashley Cooper / Dying Orange trees that no longer have water to irrigate them during severe drought, near Bakersfield, California, USA, October 2014

Ashley Cooper / Abandoned dead and dying Orange trees that no longer have water to irrigate them near Bakersfield, California, USA. October 2014.

Ashley Cooper / Abandoned dead and dying Orange trees that no longer have water to irrigate them near Bakersfield, during the 2012-2017 California Drought, California, USA. October 2014.

Ashley Cooper / Abandoned dead and dying Orange trees that no longer have water to irrigate them near Bakersfield, during the 2012-2017 California Drought, California, USA. October 2014.

Ashley Cooper / Abandoned dead and dying Orange trees that no longer have water to irrigate them near Bakersfield, during the 2012-2017 California Drought, California, USA. October 2014.

Ashley Cooper / Abandoned dead and dying Orange trees that no longer have water to irrigate them near Bakersfield, during the 2012-2017 California Drought, California, USA. October 2014.

Ashley Cooper / Abandoned dead and dying Orange trees that no longer have water to irrigate them near Bakersfield, during the 2012-2017 California Drought, California, USA. October 2014.

Ashley Cooper / Abandoned dead and dying Orange trees that no longer have water to irrigate them near Bakersfield, during the 2012-2017 California Drought, California, USA. October 2014.

Linda Pitkin / Magnificent sea anemones (Heteractis magnifica) with Three-spot dascyllus / Dominos (Dascyllus trimaculatus), and Two-banded anemonefish (Amphiprion bicinctus) Anemone City, Ras Mohammed National Park...

Alex Mustard / Orange-finned anemonefish (Amphiprion chrysopterus) guarding their recently spawned red eggs on a rock next to the host anemone. Rock Islands, Palau, Micronesia. Tropical west Pacific Ocean.

Bertie Gregory / Red Sea anemonefish (Amphiprion bicinctus) in its host anemone on a coral reef in the northern Red Sea, December.

Bertie Gregory / Red Sea anemonefish (Amphiprion bicinctus) in its host anemone , northern Red Sea.

Nick Upton / Oranges (Citrus sinensis) fruits ripening, Argolis, Peloponnese, Greece, August 2013.

Nick Upton / Unripe and ripe Oranges (Citrus sinensis) hanging on a tree in an orange grove, Argolis, Peloponnese, Greece, August 2013.

Alex Mustard / Red Sea anemonefish (Amphiprion bicinctus) pair spawning red eggs onto a rock over hanging their host anemone. Abu Dabab, Marsa Alam, Egypt. Red Sea

Alex Mustard / Orange-finned anemonefish (Amphiprion chrysopterus) pair spawning. The female (above) is laying red eggs on a rock next to the host anemone, while the male (lower) cleans the surface for more eggs. Ro...

Georgette Douwma / Red Sea anemonefish (Amphiprion bicinctus) spawning at anemone, Egypt, Red Sea.

Georgette Douwma / Red Sea anemonefish (Amphiprion bicinctus) female laying eggs with the male close behind to fertilize them, at base of Magnificent anemone (Heteractis magnifica). Egypt, Red Sea.

Georgette Douwma / Red Sea anemonefish (Amphiprion bicinctus) male and female preparing coral rock surface for spawning. Egypt, Red Sea.

Georgette Douwma / Red Sea anemonefish (Amphiprion bicinctus) with Magnificent anemone (Heteractis magnifica). Egypt, Red Sea.

Alex Mustard / Red Sea anemonefish (Amphiprion bicinctus) rubbing non-stinging side of tentacle of Magnificent sea anemone (Heteractis magnifica) over her freshly laid eggs. This covers them in anemone mucous and pr...

Alex Mustard / Red Sea anemonefish (Amphiprion bicinctus) fans oxygen rich water over its clutch of eggs with its pectoral fin. The eggs are close to hatching and laid next to the red skirt of a magnificent sea anem...

Cheryl-Samantha Owen / Oranges (Citrus sp) in orchard on Suikerbossie farm, Koue Bokkeveld / Cedarberg region, Western Cape, South Africa.

Cheryl-Samantha Owen / Oranges (Citrus sp) in orchard on Suikerbossie farm, Koue Bokkeveld / Cedarberg region, Western Cape, South Africa.

Cheryl-Samantha Owen / Orange (Citrus sp) orchard irrigation on Suikerbossie farm, Koue Bokkeveld / Cedarberg region, Western Cape, South Africa. The water comes from rainwater, mountain run-off and the Twee River, which fl...

Cheryl-Samantha Owen / Orange (Citrus sp) orchard irrigation on Suikerbossie farm, Koue Bokkeveld / Cedarberg region, Western Cape, South Africa. The water comes from rainwater, mountain run-off and the Twee River, which fl...

Cheryl-Samantha Owen / Fruit from Suikerbossie farm at a central warehouse in Cape Town, ready to be taken to market. South Africa.

Cheryl-Samantha Owen / Fruit from Suikerbossie farm at a central warehouse in Cape Town, ready to be taken to market. South Africa.

Cheryl-Samantha Owen / Fruit from Suikerbossie farm at a central warehouse in Cape Town, ready to be taken to market. South Africa.

Cheryl-Samantha Owen / Farm workers harvesting Oranges (Citrus sp) on Suikerbossie farm, Koue Bokkeveld / Cedarberg region, South Africa. February 2014.

Cheryl-Samantha Owen / Trailers of harvested Oranges (Citrus sp) on Suikerbossie farm, Koue Bokkeveld / Cedarberg region, South Africa. February 2014.

Pascal Kobeh / Coral drop off with hard corals (Porites) and jewel fairy basslets (Pseudanthias squamipinnis) and two-band anemonefish (Amphiprion bicinctus) in a Mertens' sea anemone (Stichodactyla mertensii) Sudan...

Alex Mustard / Portrait of Red Sea anemonefish (Amphiprion bicinctus) against open water. Nuweiba, Sinai, Egypt.

Alex Mustard / Portrait of two band anemonefish (Amphiprion bicinctus), endemic to the Red Sea. Sharm El Sheikh, Sinai, Egypt. Gulf of Aqaba, Red Sea.

Alex Mustard / Portrait of Red Sea anemonefish (Amphiprion bicinctus) Ras Umm Sid, Sharm El Sheikh, Sinai, Egypt. Gulf of Aqaba

Alex Mustard / Red Sea anemonefish (Amphiprion bicinctus) with their home, Magnificent sea anemone (Heteractis magnifica) which has closed up in the late afternoon revealing, on coral reef. St Johns Reef. Egypt. Red...

John Cancalosi / Clementine, variety of mandarin

Pete Oxford / Market vendor selling orange juice, Djemaa el-Fna (the square), Marrakech, Morocco, June 2009

Wild Wonders of Europe / Lilja / Ripe oranges on tree (Citrus sinensis) Crete, Greece, April 2009

Wild Wonders of Europe / Lilja / Oranges (Citrus sinensis) on tree, Crete, Greece, April 2009

Wild Wonders of Europe / Lilja / Ripe Oranges (Citrus sinensis) on tree, Crete, Greece, April 2009

Wild Wonders of Europe / Lilja / Oranges (Citrus sinensis) Crete, Greece, April 2009

Tim Laman / Orange-fin anemonefish (Amphiprion chrysopterus) amongst anemone tentacles, Somosomo Strait, Rainbow Reef, Fiji.

Tim Laman / Orange-fin anemonefish (Amphiprion chrysopterus) amongst tentacles of Sea anemone. Vatu-i-Ra Island, Fiji. Oct 03.

Juan Manuel Borrero / Market stalls selling orange juice in Djemaa el Fna square, Marrakech, Morocco December 2007

Juan Manuel Borrero / Orange tree in the Princesa Lalla Hasna gardens in Marrakech, Morocco December 2007

Jose B. Ruiz / Mandarin fruit {Citrus reticulata} and lemons on table, Alicante, Spain

Gary K. Smith / Smoothie maker with fresh fruit, UK

Jose B. Ruiz / Sweet orange tree with fruit {Citrus aurantium sinensis} Valencia, Spain

DAVID TIPLING / Oranges (Citrus sp) growing in grove, Lesbos, Greece

Dan Burton / Bowls of oranges for sale in market, South Africa

Toby Sinclair / Women selling oranges beside road, Mysore, Karnataka, India

WILLIAM OSBORN / Scaly breasted lorikeet feeding on fruit {Trichoglossus chlorolepidotus} Australia.

Michael Pitts / Orange fin anemonefish {Amphiprion chrysopterus} in sea anemone

Brent Hedges / Orange fin anemonefish {Amphiprion chrysopterus} Coral Sea, Australia

Jose B. Ruiz / Orange tree flowers {Citrus aurantium sinensis} Spain

Michael Pitts / Orange fin anemonefish {Amphiprion chrysopterus} in soft coral

Michael Pitts / Orange fin anemonefish {Amphiprion chrysopterus} in sea anemone

Jose B. Ruiz / Orange flowers {Citrus aurantium sinensis} Spain

Jose B. Ruiz / Oranges on tree {Citrus aurantium sinensis} Spain

Adrian Davies / Mould on Satsuma under visible light (top) and fluorescing under UV light (bottom).

Adrian Davies / Satsuma (Citrus sp.) with mould (Penicillium sp.), in visible light at top and fluorescing in UV light below.

Adrian Davies / Cross section of fruit in visible light, and fluorescing in UV light on black background. Top: Orange; Centre: Kiwi; Bottom: Pomegranate.

Adrian Davies / Bowl of fruit in UV light showing mould on Satsuma (Citrus sp.). See 1729463.

Adrian Davies / Bowl of fruit in visible light showing mould on Satsuma (Citrus sp.). See 1729464.

Franco Banfi / Scuba diver with Orangefin Anemonefish (Amphiprion chrysopterus) swimming around anemone, Moorea, French Polynesia, Pacific Ocean. Model released.

Bruce Thomson / Orange-backed troupial (Icterus croconotus) feeding in orange tree, Pocone, Brazil.

Nigel Cattlin / Olleocellosis / Green spot, a physiological rind disorder causing blemishes in orange peel after rupture of the peel oil glands causing a toxic reaction in the pericarp cells.

Alex Mustard / Portrait of a Red Sea anemonefish (Amphiprion bicinctus) above the tentacles of a Magnificent sea anemone (Heteractis magnifica) on a coral reef. Daedelus Reef. Egypt. Red Sea.

Nigel Cattlin / Rows of orange trees (Citrus sinensis) with green, maturing fruit in an orchard in the Low Veldt, Transvaal, South Africa, February

Nigel Cattlin / Rows of orange trees (Citrus sinensis) with green, maturing fruit in an orchard in the Low Veldt, Transvaal, South Africa, February

Nigel Cattlin / Young orange orchard on the Letaba Estates with hose for piped irrigation and nutrient drip, near Tzaneen, Transvaal, South Africa

Rolf Nussbaumer / Tennessee warbler (Leiothlypis peregrina) flock feeding on oranges amongst other warblers. South Padre Island, Texas, USA.

Jeff Foott / Orange (Citrus sinensis) trees outside Mission San Francisco Javier. Near Loreto, Baja California Sur, Mexico. 2020.

Matthew Maran / Person holding a halved blood orange at cooking course at Made In Hackney, Plant-based community cooking school. London, England, UK, January.

Nigel Cattlin / Mediterranean fruit fly (Ceratitis capitata) feeding on Orange fruit. October.