Luiz Claudio Marigo / Cooking manioc flour cakes, Mamiraua Ecological Station, Amazonas, Brazil

Luiz Claudio Marigo / Cooking manioc flour cakes, Piagacu Purus Sustainable Devt Reserve, Amazonas, Brazil

Andy Sands / King Alfred's cakes / Cramp ball (Daldinia concentrica) hard fungi often found on dead ash or beech wood, Hertfordshire, England, UK, December

Aflo / Dachshund puppy with necklace, sitting with cakes.

Alex Mustard / Portrait of Striped fangblenny (Meiacanthus grammistes) on a coral reef. Layer Cake, Wayil Batan, Misool, Raja Ampat, West Papua, Indonesia. Ceram Sea. Pacific Ocean.

Alex Mustard / Azure demoiselle (Chrysiptera hemicyanea) on a coral reef. Layer Cake, Wayil Batan, Misool, Raja Ampat, West Papua, Indonesia. Ceram Sea, Pacific Ocean.

Alex Hyde / Scarce Fungus Weevils (Platyrhinus resinosus) eating King Alfred's cake fungus (Daldinia concentrica) on dead ash tree. Peak District National Park, Derbyshire, UK. April. Nationally Scarce species in...

Nick Upton / Cramp Balls / King Alfred's Cakes fungus (Daldinia concentrica) growing on a rotten log in woodland, Gloucestershire, UK, October.

Alex Hyde / King Alfred's Cakes Fungus / Cramp Balls Fungus (Daldinia concentrica) Peak District National Park, Derbyshire, UK, May.

Alex Hyde / King Alfred's Cakes Fungus / Cramp Balls Fungus (Daldinia concentrica) Powys, Wales. November.

Enrique Lopez-Tapia / Yak dung cakes out to dry in sun, they are used as fuel for the fire. Sagarmatha National Park (World Heritage UNESCO). Khumbu / Everest Region, Nepal, Himalaya, October 2011.

Merryn Thomas / Traveller sitting on wall, haggling for local cakes on Essaouira beach, November 2008.