Piper Mackay / Two bull Northern elephant seals (Mirounga langustirostris) fighting in the waves, Pt Piedras Blancas, California, USA

Piper Mackay / Head portrait of Coyote (Canis latrans) yawning, Bolsa Chica wetlands, Huntington Beach, California, USA

Piper Mackay / Container freighter travelling through the Panama canal, Panama, November 2008

Piper Mackay / Toco toucan (Ramphastos toco) feeding, throwing nut into air to catch it in beak, Pantanal, Brazil.

Robert Valentic / Green Tree Snake (Dendrelaphis punctulatus) melanistic form, Melaleuca swampland, Mackay, Queensland coast. Australia. Dry season.

Steven David Miller / Blue-faced honeyeater (Entomyzon cyanotis) feeding on Spider flower (Grevillea sp). Mackay, Queensland, Australia.

Steven David Miller / Plumed whistling-duck (Dendrocygna eytoni), three walking in a row. Mackay, Queensland, Australia.

Steven David Miller / Blue-faced honeyeater (Entomyzon cyanotis) perched in Spider flower (Grevillea sp) shrub. Mackay, Queensland, Australia.

D. Parer & E. Parer-Cook / Olive-backed Sunbird (Cinnyris jugularis) female building nest, Pioneer Valley, Mackay, Queensland, Australia

Andy Trowbridge / Lower section of MacKay Falls on the Milford Track, Arthur Valley, Fiordland National Park, Southland, South Island, New Zealand. November, 2006.

Piper Mackay / Bobcat (Felis rufus) walking on edge of gravel track, San Joaquin Reserve, Irvine California, USA

Piper Mackay / Bobcat (Felis rufus) walking along track, licking lips, San Joaquin Reserve, Irvine California, USA