Morley Read / Column of Leaf cutter ants (Atta sp) carrying leaves over the rainforest floor to their nest, Amazon rainforest, Orellana Province, Ecuador. (non-ex)

Morley Read / Slow motion clip of Leafcutter ants (Atta) carrying pieces of leaves back to their nest, Amazon rainforest, Napo Province, Ecuador. (non-ex)

Morley Read / Column of Leaf cutter ants (Atta) carrying cut pieces of leaves along the forest floor towards therr nest, Orellana Province, Ecuador, 2018. (non-ex)

Alex Hyde / Leaf-cutter ant (Atta cephalotes) carrying pieces of leaf that they have harvested back to their underground fungus garden in their nest, Osa Peninsula, Costa Rica

Alex Hyde / Leaf-cutter ants (Atta cephalotes) carrying pieces of leaf that they have harvested back to their underground fungus garden in their nest, Osa Peninsula, Costa Rica. Photographed in mobile field studi...

Alex Hyde / Leaf-cutter ants (Atta cephalotes) carrying pieces of leaf that they have harvested back to their underground fungus garden in their nest, Osa Peninsula, Costa Rica. Photographed in mobile field studi...

Mark Moffett / Granular Poison Dart Frog (Dendrobates granuliferus) portrait on bird's nest fungus, Corcovado National Park, Costa Rica

Morley Read / Slow motion clip of Leafcutter ants (Atta) carrying pieces of leaves back to their nest, Amazon rainforest, Napo Province, Ecuador. (non-ex)

Morley Read / Slow motion clip of Leafcutter ants (Atta) carrying pieces of leaves back to their nest, Amazon rainforest, Napo Province, Ecuador. (non-ex)

Nick Upton / Aspen (Populus tremula) with Aspen trunk rot / False tinder conk mushroom (Phellinus tremulae). Trees with rotten cores provide ideal nest holes for the Siberian flying squirrel (Pteromys volans). Mur...

Andy Sands / Fluted Bird's Nest (Cyathus striatus) an unusal fungus with small cup-shaped nests that when open contain peridioles looking like tiny eggs, Buckinghamshire, England, UK, October - Focus Stacked I...

Andy Sands / Fluted Bird's Nest (Cyathus striatus) Unusal fungus with small cup shaped nests that when open contain peridioles that look like tiny eggs, Buckinghamshire, England, UK, October - Focus Stacked Im...

Adrian Davies / Fluted bird's nest fungus (Cyathus striatus) among moss, Sussex, UK. September 2017.

Adrian Davies / Fluted bird's nest fungus (Cyathus striatus) among moss, Sussex, UK. September 2017.

Konrad Wothe / Tracking shot of Leafcutter ants (Atta cephalotes) carrying bits of leaves back to their nest, Pucallpa, Huanuco Region, Peru.

Konrad Wothe / Tracking shot of Leafcutter ants (Atta cephalotes) carrying bits of leaves back to their nest, Pucallpa, Huanuco Region, Peru.

Konrad Wothe / Tracking shot of Leafcutter ants (Atta cephalotes) carrying bits of leaves back to their nest, Pucallpa, Huanuco Region, Peru.

Konrad Wothe / Tracking shot of Leafcutter ants (Atta cephalotes) carrying bits of leaves back to their nest, Pucallpa, Huanuco Region, Peru.

Konrad Wothe / Tracking shot of Leafcutter ants (Atta cephalotes) carrying bits of leaves back to their nest, Pucallpa, Huanuco Region, Peru.

Konrad Wothe / Tracking shot of Leafcutter ants (Atta cephalotes) carrying bits of leaves back to their nest, Pucallpa, Huanuco Region, Peru.

Konrad Wothe / Leafcutter ants (Atta cephalotes) on a trail taking leaves back to nest, Panguana Reserve, Huanuco Province, Peru.

Konrad Wothe / Leafcutter ants (Atta cephalotes) on a trail taking leaves back to nest, Panguana Reserve, Huanuco Province, Peru.

Alex Hyde / Leaf-cutter ants (Atta cephalotes) carrying pieces of leaf that they have harvested back to their underground fungus garden in their nest, Osa Peninsula, Costa Rica

Adrian Davies / Fluted bird's nest fungus (Cyathus striatus) Sussex, England, UK. October.

Adrian Davies / Fluted bird's nest fungus (Cyathus striatus) Sussex, England, UK. October.

Chien Lee / Bird's Nest Fungus (Cyathus sp), Nanga Sumpa, Batang Ai National Park, Malaysia

Luiz Claudio Marigo / Fungi growing from the inside of a termite mound, Sao Roque de Minas municipality, Serra da Canastra National Park, Minas Gerais State, Brazil.

Piotr Naskrecki / Fungal nest from underground termite colony, Gorongosa National Park, Mozambique

D. Parer & E. Parer-Cook / Golden Bowerbird (Prionodura newtoniana) male at bower decorated with lichen and flowers, Atherton Tableland, Queensland, Australia

D. Parer & E. Parer-Cook / Golden Bowerbird (Prionodura newtoniana) bower with lichen decoration, Atherton Tableland, Queensland, Australia

Alex Mustard / Coho salmon (Oncorhynchus kisutch) migrating upstream in the Adams River, British Columbia, Canada.The stresses of the migration take their toll on the health of these fish, and this one has lots of f...

Adrian Davies / Fluted bird's nest fungus (Cyathus striatus) with peridioles containing spores, Sussex, England, UK, October

Chien Lee / Bird's Nest Fungus (Cyathus sp) showing spores that are dispersed by rain drops, Sarawak, Borneo, Malaysia

Martin Willis / Golden Bowerbird (Prionodura newtoniana) male carrying lichen to decorate bower, Mount Hypipamee National Park, Queensland, Australia

Martin Willis / Golden Bowerbird (Prionodura newtoniana) male carrying lichen to decorate bower, Mount Hypipamee National Park, Queensland, Australia

Piotr Naskrecki / Bird's Nest Fungus (Crucibulum laeve) mushrooms with peridioles, Woburn, Massachusetts

Piotr Naskrecki / Fungus Gardening Ant (Cyphomyrmex faunulus) fungal garden with insect remains used as its substrate, Guyana

Piotr Naskrecki / Fungus Gardening Ant (Cyphomyrmex faunulus) in fungal garden, Guyana

Luiz Claudio Marigo / Leafcutter Ants (Atta cephalotes) taking cut leaves back to their nest for their fungus gardens. Tayrona National Natural Park, municipality of Santa Marta, Magdalena Department, Colombia.

Adrian Davies / Fluted Bird's nest fungus (Cyathus striatus) resembling a miniature bird's nest with numerous tiny eggs-like peridioles, containing spores. Devon, England.

Adrian Davies / Fluted bird's nest fungus (Cyathus striatus) resembling a miniature bird's nest with numerous tiny eggs-like peridioles, containing spores. Devon, England.

Adrian Davies / Fluted Bird's nest fungus (Cyathus striatus) resembling a miniature bird's nest with numerous tiny eggs-like peridioles, containing spores. Devon, England.

Adrian Davies / Fluted Bird's nest fungus (Cyathus striatus) resembling a miniature bird's nest with numerous tiny eggs-like peridioles, containing spores. Devon, England.

Adrian Davies / Cross section through Fluted bird's nest fungus (Cyathus striatus) resembling a miniature bird's nest with numerous tiny eggs-like peridioles, containing spores. Devon, England.

Adrian Davies / Young specimens of Fluted Bird's nest fungus (Cyathus striatus) resembling a miniature bird's nest with numerous tiny eggs-like peridioles, containing spores. Devon, England.

Adrian Davies / Fluted bird's nest fungus (Cyathus striatus) resembling a miniature bird's nest with numerous tiny eggs-like peridioles, containing spores. Devon, England.

David Kjaer / Hornet (Vespa crabro) nest on side of tree, with bracket fungus and Hornets flying in and out, Gloucestershire, England. September

Stephen Dalton / Leafcutter / Parasol ant (Atta sp.) carrying flower to nest to cultivate fungus garden, Venezuela

Piotr Naskrecki / Fungi grown by termites in an underground nest, Ajenjua Bepo Forest Reserve, Ghana

Mark Moffett / Termite colony in fungus nest, Gashaka, Nigeria

Mark Moffett / Bird's Nest Fungus (Cyathus sp) showing spores that are dispersed by rain drops, Ecuador

Piotr Naskrecki / Ant (Trachymyrmex opulentus) worker on a fungal garden inside the nest, Guyana

Piotr Naskrecki / Fungus Gardening Ant (Cyphomyrmex faunulus) nest showing fungal mycelium of the fungal garden these insects cultivate in their nests, Guyana

Piotr Naskrecki / Fungus Gardening Ant (Cyphomyrmex faunulus) worker on fungal mycelium in the fungal garden these insects cultivate in their nests, Guyana

PREMAPHOTOS / Leaf-cutting ants (Atta sexdens) returning to their nest with cut off portions of leaf for their fungus garden, in rainforest, Brazil

Michael & Patricia Fogden / Bird's Nest Fungus (Cyathus sp) showing spores that are dispersed by rain drops, Peru

Kim Taylor / Two toothed door snail {Clausilia bidentata} on Birds nest fungus, UK.

Mark Moffett / Granular Poison Dart Frog (Dendrobates granuliferus) on bird's nest fungus, Corcavado National Park, Costa Rica

Duncan Usher / Bird's Nest Orchid (Neottia nidus-avis) gains nutrients from fungus which lives in its roots, Europe

Mark Moffett / Leafcutter Ant (Atta capiguara) fungus garden showing fungal tufts, or gongylidia, and the pores that ants use as walkways to the interior, Brazil

Mark Moffett / Leafcutter Ant (Acromyrmex octospinosus) in fungus garden, Guadaloupe

Mark Moffett / Leafcutter Ant (Atta columbica) fungus garden chamber tended to by workers, central Paraguay

Mark Moffett / Leafcutter Ant (Trachymyrmex sp) nest chamber, about 10cm wide, contains two fungus gardens hanging like fragile stalactites, French Guiana

Jaymi Heimbuch / Bird's Nest Fungus (Nidulariaceae) mushrooms, Oregon

D. Parer & E. Parer-Cook / Golden Bowerbird (Prionodura newtoniana) male at decorating bower with lichen, Atherton Tableland, Queensland, Australia

Martin Willis / Golden Bowerbird (Prionodura newtoniana) male carrying lichen to decorate bower, Mount Hypipamee National Park, Queensland, Australia

Christian Ziegler / Bird's Nest Orchid (Neottia nidus-avis) receives nutrients from fungus symbionts, Lake Constance, Germany

Premaphotos / Leaf-cutting ants (Atta sexdens) returning to their nest with cut off portions of leaf for their fungus garden, in Amazonian rainforest, Brazil

Premaphotos / Leaf-cutting ants (Atta sexdens) returning to their nest with cut off portions of leaf for their fungus garden, in Amazonian rainforest, Brazil

Mark Moffett / Leafcutter Ant (Atta capiguara) fungus garden showing fungal tufts, or gongylidia, and the pores that ants use as walkways to the interior, Brazil

Mark Moffett / Leafcutter Ant (Acromyrmex octospinosus) in fungus garden, Guadaloupe

Adrian Davies / Fluted bird's nest fungus (Cyathus striatus) growing on damp ground, Surrey, UK. November.

Adrian Davies / Common bird's nest fungus (Crucibulum laeve) growing on damp leaf litter, Surrey, UK. November.

Paul Harcourt Davies / Lesser twayblade (Neottia cordata also Listera cordata) This is an orchid of acidic habitats, never very common but may be frequently overlooked because of its small size and a tendency to grow unde...

Paul Harcourt Davies / Lesser twayblade (Neottia cordata also Listera cordata) This is an orchid of acidic habitats, never very common but may be frequently overlooked because of its small size and a tendency to grow unde...

Lewis Jefferies / Leaf cutter ants (Atta cephalotes) carrying leaves back to their nest, Carara National Park, Costa Rica, February.

Lewis Jefferies / Leaf cutter ants (Atta cephalotes) carrying leaves back to their nest, Carara National Park, Costa Rica, February.

Tony Wu / Japanese dwarf flying squirrel (Pteromys volans orii) pair on tree trunk at dusk, one peering out of nest, the other perched on branch. Hokkaido, Japan. March.

Tony Wu / Japanese dwarf flying squirrel (Pteromys volans orii) sitting on tree trunk outside nest hole at dusk. Hokkaido, Japan. March.

Tony Wu / Japanese dwarf flying squirrel (Pteromys volans orii) emerging from nest hole at dusk. Hokkaido, Japan. March.

Tony Wu / Japanese dwarf flying squirrel (Pteromys volans orii) peering out of nest hole in tree trunk. Hokkaido, Japan. March.

Adrian Davies / Leafcutter ant (Atta cephalotes) entrance to nest. Costa Rica.

Adrian Davies / Leafcutter ant (Atta cephalotes) cut leaves on ground near nest. Costa Rica.

Adrian Davies / Leafcutter ant (Atta cephalotes) carrying leaf section to nest. Costa Rica.

Adrian Davies / Leafcutter ant (Atta cephalotes) nest, Costa Rica.

Robert Pickett / Leaf Cutter Ants (Atta cephalotes) on trail in rainforest taking leaves back to nest, Iquitos, Peru