Colin Varndell / Young fruiting bodies of Spiny puffball (Lycoperdon echinatum) fungus. New Forest Hamshire, UK October.

Alex Hyde / Spiny lobster katydid (Panoploscelis sp.) on tree trunk. Manu Biosphere Reserve, Amazonia, Peru. November.

Alex Hyde / Lubber grasshopper (Chromacris sp.) with spiny legs raised in defensive pose and bearing aposematic markings to warn of its toxicity. Cloud forest understory vegetation, 1600 metres altitude, Manu Bio...

Alex Hyde / Spiny Lobster Katydid (Panoploscelis sp.) photographed on a white background in mobile field stuio. Manu Biosphere Reserve, Amazonia, Peru. November.

Alex Hyde / Spiny Lobster Katydid (Panoploscelis sp.) female with ovipositor visible, Manu Biosphere Reserve, Amazonia, Peru. November.

Eladio Fernandez / Coco macaque (Bactris plumeriana) in tropical forest, Hispaniola.

Adrian Davies / Spiny puffball (Lycoperdon echinatum) Surrey, England, UK.

Adrian Davies / Spiny puffball (Lycoperdon echinatum) Surrey, England, UK. September.

Lucas Bustamante / Bocourt's dwarf iguana / Spiny dwarf-iguana (Enyalioides heterolepis) on branch, Canande, Esmeraldas, Ecuador.

Philippe Clement / Mature fruiting body of Spiny puffball / Spring puffball (Lycoperdon echinatum) on soil in deciduous wood, Luxembourg, August

Mark MacEwen / Octopus tree (Didiera madagascariensis) leaves, Spiny Forest, Berenty, Madagascar

Mark MacEwen / Octopus tree (Didiera madagascariensis), Spiny Forest, Berenty, Madagascar