Alan Watson / Frond pattern of tree ferns (Cyathea arborea) in lowland tropical rainforest at 420 metres, Loma Quita Espuela Scientific Reserve, Dominican Republic.

Jack Dykinga / Pink flowers fallen from Marlberry tree (Ardisia sp) in the forest canopy above onto dense carpet of ferns, El triunfo Biosphere Reserve, Chaipas, Mexico

Juergen Freund / Millaa Millaa Waterfall amongst tropical rainforest with Tree fern, Queensland, Australia

Dave Watts / Eastern Quoll {Dasyurus viverrinus} on log, dark phase, Tasmania, Australia.

Claus Meyer / Tree Frog (Hyla sp) balanced on fern fiddlehead, Atlantic Forest, Brazil

Georgette Douwma / Tree fern or Palm coral {Clavularia sp} Papua New Guinea

Morley Read / Slow motion clip of a Linda's torrenteer frog (Hyloscirtus lindae) jumping from a tree fern leaf, Orellana Province Ecuador. (non-ex)

Morley Read / Slow motion clip of a Linda's torrenteer frog (Hyloscirtus lindae) jumping from a tree fern leaf, Orellana Province Ecuador. (non-ex)

Morley Read / Slow motion clip of a Linda's torrenteer frog (Hyloscirtus lindae) jumping from a tree fern leaf, Orellana Province Ecuador. (non-ex)

John Shaw / Sword ferns (Polystichum munitum) in a red alder (Alnus rubra) grove. Hoh Rainforest, Olympic National Park, Washington, USA, June.

John Shaw / Sword ferns (Polystichum munitum) in a red alder (Alnus rubra) grove. Hoh Rainforest, Olympic National Park, Washington, USA, June.

John Shaw / Moss-covered Sitka spruce (Picea sitchensis) and sword fern (Polystichum munitum) in the Hoh Rain Forest, Olympic National Park, Washington, USA, June.