Andy Sands / Scarlet caterpillar club fungi (Cordyceps militaris) Excavated to show caterpillar with fungi fruiting from it, Buckinghamshire, England, UK, October. Focus Stacked Image

Andy Sands / Scarlet caterpillar club fungi (Cordyceps militaris) Excavated to show caterpillar with fungi fruiting from it, Buckinghamshire, England, UK, October. Focus Stacked Image

Adrian Davies / Scarlet caterpillarclub fungus (Cordyceps militaris / Ophiocordyceps sinensis). This species parasitises caterpillars. Sussex, England, UK. October.

Andy Sands / Scarlet caterpillar club fungi (Cordyceps militaris) found on grass at woodland edges this ascomycete parasitises its host a caterpillar or pupae and fruits from it, Buckinghamshire, England, UK, Octo...

Andy Sands / Scarlet caterpillar club fungus (Cordyceps militaris) found on grass at woodland edges, this ascomycete parasitises its host, a caterpillar or pupae, and fruits from it, Buckinghamshire, England, UK,...

Andy Sands / Scarlet caterpillar club fungi (Cordyceps militaris) found on grass at woodland edges this ascomycete parasitises its host, a caterpillar or pupa, and fruits from it, Buckinghamshire, England, UK, Oc...

Pete Oxford / Cofan wood lizard (Enyalioides cofanorum) Yasuni National Park, Amazon Rainforest, Ecuador, South America.

Adrian Davies / Scarlet caterpillar club (Cordyceps militaris) a parasitic fungus on the buried larvae of butterflies and moths. Sussex, England, UK, November.

Pete Oxford / Cordyceps Fungus attacking fly (Cordyceps sp) Yasuni National Park, Amazon Rainforest, Ecuador, South America.

Zoltan Nagy / Moth infected with parasitic fungus (Cordyceps sp) in small cave, Apuseni Mountains, Carpathian Mountain Range, Romania. November

Roman Willi / Caterpillar infected by Cordyceps fungus, Osa Peninsula, Costa Rica.

Roman Willi / Moth (Lepidoptera) infected by Cordyceps fungus Osa Peninsula, Costa Rica.

Alex Hyde / Close up of Cordyceps (Cordyceps sp.) fungus fruiting body erupting from a dead Ant (Formicidae) that has been killed by the fungus, Danum Valley, Sabah, Borneo.

John Abbott / Ant (Formicidae) infected with Cordyceps fungus, Cayo District, Belize.

John Abbott / Ant (Formicidae) infected with Cordyceps fungus, Cayo District, Belize.

John Abbott / Ant (Formicidae) infected with Cordyceps fungus, Cayo District, Belize.

John Abbott / Ant (Formicidae) infected with Cordyceps fungus, Cayo District, Belize.

Ripan Biswas / Cordyceps fungus sporing bodies emerging from daddy long legs, Coochbehar, India. Nature Photographer of the Year Competition 2021 - Highly Commended Plants and Fungi Category. Asferico International...

Guy Edwardes / Scarlet caterpillarclub fungus (Cordyceps militaris), Ystradfellte, Powys, Wales. November.

Alex Hyde / Cordyceps fruiting body erupting from a dead ant that the fungus has killed. Danum Valley, Sabah, Borneo.

Alex Hyde / Cordyceps fruiting body erupting from a dead ant that the fungus has killed. Danum Valley, Sabah, Borneo.

Alex Hyde / Cordyceps fruiting bodies erupting from a dead moth that the fungus has killed. Danum Valley, Sabah, Borneo.

Alex Hyde / Cordyceps fruiting bodies erupting from a dead moth that the fungus has killed. Danum Valley, Sabah, Borneo.

Alex Hyde / Cordyceps fruiting bodies erupting from a dead moth that the fungus has killed. Danum Valley, Sabah, Borneo.

Andy Sands / Scarlet caterpillar club fungus (Cordyceps militaris) Growing from ground at the edge of woodland clearing, Buckinghamshire, England, UK, October. Focus stacked Image

Andy Sands / Scarlet caterpillar club fungus (Cordyceps militaris). Combined image to show mummified caterpillar with fungi growing from it, Buckinghamshire, England, UK, November. Focus stacked.

Andy Sands / Scarlet caterpillar club fungus (Cordyceps militaris), excavated to show mummified caterpillar with the fungi growing from it, Buckinghamshire, England, UK, November.

Andy Sands / Scarlet caterpillar club fungus (Cordyceps militaris) growing in grass at edge of woodland clearing, Buckinghamshire, England, UK, November. Focus stacked.

Morley Read / Cordyceps fungus parasitizing a spider. The fungus alters the behaviour of its host before killing it, ensuring the insect will die in a high place, enabling the spores to be spread easily. Yasuni Nat...

Morley Read / Cordyceps fungus parasitizing a wasp. The fungus alters the behaviour of its host before killing it, ensuring the insect will die in a high place, enabling the spores to be spread easily. Yasuni Natio...

Adrian Davies / Scarlet caterpillarclub fungus (Cordyceps militaris). Surrey, England, UK. February.