Martin Willis / Green Tree Snake (Dendrelaphis punctulata) cotrasts with Zamia Palm (Macrozamia riedlei) fruit, Coffs Harbour, New South Wales, Australia

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) young leaves, Modjadji Cycad Reserve, South Africa

Piotr Naskrecki / Cycad (Cycas sp) trunks are covered with old leaf petioles, and special protective leaves known as cataphylls, South Africa

Piotr Naskrecki / Cycad (Cycas sp) leaves with defensive spikes, South Africa

Piotr Naskrecki / Cycad (Cycas sp) immature female cone, South Africa

Piotr Naskrecki / Cycad (Cycas sp) new leaf with burned trunk after fire, South Africa

Piotr Naskrecki / Ferocious Blue Cycad (Encephalartos horridus) leaf, South Africa

Piotr Naskrecki / Mexican Cycad (Dioon edule) leaf, Mexico

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus), Modjadji Cycad Reserve, Limpopo, South Africa

Piotr Naskrecki / Florida Cycad (Zamia integrifolia) leaf, Florida

Nature Production / Japanese Fern Palm (Cycas revoluta) Chiba, Japan

Nature Production / Japanese Fern Palm (Cycas revoluta) leaf, close-up

Gerry Ellis / Albany Cycad (Encephalartos latifrons) cone, Kirstenbosch Garden, South Africa

Tim Laman / Female Eastern grey kangaroo (Macropus giganteus) eating Cycad fruit, with joey looking out of pouch, Carnarvon National Park, Queensland, Australia

Tim Laman / Female Eastern grey kangaroo (Macropus giganteus) eating Cycad fruit, with joey looking out of pouch, Carnarvon National Park, Queensland, Australia

Piotr Naskrecki / Poor Man's Cycad (Encephalartos villosus) young female cone, Kirstenbosch National Botanica, Cape Town, South Africa

Piotr Naskrecki / Poor Man's Cycad (Encephalartos villosus) young female cone, Kirstenbosch National Botanica, Cape Town, South Africa

Piotr Naskrecki / Poor Man's Cycad (Encephalartos villosus) young female cone, Kirstenbosch Garden, Cape Town, Western Cape, South Africa

Piotr Naskrecki / Cycad (Cycas sp) with mature male cones, Kirstenbosch Garden, Cape Town, Western Cape, South Africa

Piotr Naskrecki / White-haired Cycad (Encephalartos friderici-guilielmi) is just about to produce a new set of leaves, Kirstenbosch Garden, Cape Town, Western Cape, South Africa

Piotr Naskrecki / Cycad spikes on leaves, Kirstenbosch National Botanica, Cape Town, South Africa

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) male cones, Mkambati Nature Reserve, Eastern Cape, South Africa

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) male cones, Mkambati Nature Reserve, South Africa

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) after sunset, Modjadji Cycad Reserve, Limpopo, South Africa

Piotr Naskrecki / Sand Wasp (Sphecidae) female dragging paralyzed caterpillar to her borrow to feed her larvae, Modjadji Cycad Reserve, South Africa

Piotr Naskrecki / Katydid (Tylopsis continua), Modjadji Cycad Reserve, South Africa

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) female cone, Modjadji Cycad Reserve, South Africa

Piotr Naskrecki / Wingless Grasshopper (Lentulidae), Modjadji Cycad Reserve, South Africa

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) young female cones and new leaves, Modjadji Cycad Reserve, Limpopo, South Africa

Piotr Naskrecki / Cycad (Cycas sp) new leaf, Modjadji Cycad Reserve, Limpopo, South Africa

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) trees, Modjadji Cycad Reserve, South Africa

Piotr Naskrecki / Leaf litter composed entirely of cycad leaves, Modjadji Cycad Reserve, South Africa

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) female cone, Modjadji Cycad Reserve, Limpopo, South Africa

Piotr Naskrecki / Cycad trunks are not covered with bark, but with remnants of the old leaf petioles, and special, protective leaves known as cataphylls, Modjadji Cycad Reserve, South Africa

Piotr Naskrecki / Sago Cycad (Cycas revoluta) on karst rock formations, Hedo, Okinawa, Japan

Piotr Naskrecki / Sago Cycad (Cycas revoluta) female pseudocone, Hedo, Okinawa, Japan

Piotr Naskrecki / Sago Cycad (Cycas revoluta) trees on karst formation, Hedo, Okinawa, Japan

Piotr Naskrecki / Sago Cycad (Cycas revoluta) plants on karst rock formations, Hedo, Okinawa, Japan

Piotr Naskrecki / Sago Cycad (Cycas revoluta) plants on karst rock formations, Hedo, Okinawa, Japan

Piotr Naskrecki / Sago Cycad (Cycas revoluta) female pseudocone, a loose aggregation of sporophylls, Hedo, Okinawa, Japan

Piotr Naskrecki / Sago Cycad (Cycas revoluta) young leaf, Hedo, Okinawa, Japan

Piotr Naskrecki / Sago Cycad (Cycas revoluta) trees on karst formation, Hedo, Okinawa, Japan

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) forest covering valley slopes, Modjadji Cycad Reserve, South Africa

Piotr Naskrecki / Giant Cockroach (Oxyhaloa deusta), Modjadji Cycad Reserve, South Africa

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) forest covering valley slopes, Modjadji Cycad Reserve, South Africa

Piotr Naskrecki / Common Woolly Legs (Lachnocnema bibulus) and ants collecting honeydew produced by aphids feeding on cycad, Modjadji Cycad Reserve, Limpopo, South Africa

Michael & Patricia Fogden / Sago Cycad (Cycas revoluta) male showing leaves and cone, southeast Asia

ZSSD / Sago Cycad (Cycas revoluta) male showing leaves and cone, native to southern Japan

ZSSD / Sago Cycad (Cycas revoluta) male showing leaves and cone, native to southern Japan

Jack Dykinga / Giant Sotolin (Beaucarnea sp) and Cycad (Dioonedule sp) in dense Huasteca forest, Abra Tanchipa National Park, San Lius Potosi, Mexico

Pete Oxford / Male flower of cycad palm (Cycas pectinata) Xishuangbanna, Yunnan, China

JIM CLARE / Chrysalises of Cycad butterfly (Eumaeus minijas) Belize, Central America

JIM CLARE / Cycad butterfly (Eumaeus minijas) Belize, Central America

JIM CLARE / Caterpillar larvae of Cycad butterfly (Eumaeus minijas) feeding on Cycad leaf, Belize, Central America

Patricio Robles Gil / Poor Man's Cycad (Encephalartos villosus) showing male cones, Greater St Lucia Park, Kwazulu-Natal, South Africa

John Cancalosi / Cycad Bread palm fruit {Encephalartos altensteinii} South Africa

Patricio Robles Gil / Poor man's cycad {Encephalartos villosus} South Africa

Patricio Robles Gil / Looking down into Cycad plant {Cycas sp} Mexico

Mark Taylor / White-haired cycad {Encephalartos friderici-guilielmi}.

Gerry Ellis / White-haired Cycad (Encephalartos friderici-guilielmi) cones, Kirstenbosch Garden, South Africa

Michael & Patricia Fogden / MacDonnell Ranges Cycad (Macrozamia macdonnellii) growing in the MacDonnell Range, Garden of Eden, King's Canyon, Watarrka National Park, Northern Territory, Australia

Pete Oxford / Male flower of cycad palm {Cycas sp} Xishuangbanna, Yunnan, China {Cycas pectinata?}

Thoswan Devakul / Cycad {Cycas sp} grows after forest fire, Huai Kha Khaeng WS, Thailand.

Pete Oxford / Cycad, Grande Comore, Comoros

Tony Heald / Cycad, new growth after fire {Cycas sp} Northern Territory, Australia

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) forest, South Africa

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) forest, South Africa

Piotr Naskrecki / Sago Cycad (Cycas revoluta) on karst rock formations, Hedo, Okinawa, Japan

Piotr Naskrecki / Cardboard Palm (Zamia furfuracea) leaves, Mexico