Robert Valentic / Central bearded dragon (Pogona vitticeps) basking in mallee / heathland habitat on the Murrayville Track in the Big Desert Wilderness of north-western Victoria, Australia.
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Andy Rouse / Alcedo volcano Galapagos giant tortoise (Chelonoidis vandenburghi) adult male on forest track, Urbina Bay, Isabela Island, Galapagos.
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Bernard Castelein / Rhesus macaque (Macaca mulatta), mixed group of female and juveniles, walking along a track, Keoladeo National Park, Bharatpur, India
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Stefan Christmann / Emperor penguin (Aptenodytes forsteri) footprints on sea ice. Atka Bay, Antarctica. August.
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Giri Cavale / Melanistic leopard / Black panther (Panthera pardus) on territorial patrol on track, Nagarahole National Park, Nilgiri Biosphere Reserve, Karnataka, India.
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Nick Garbutt / Wolf (Canis lupus) male on rocky snow covered slopes. Ulley Valley in the Himalayas, Ladakh, India.
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Tui De Roy / Volcan Alcedo Giant Tortoise (Chelonoidis nigra vandenburghi) group wallowing in mud at night, Alcedo Volcano, Isabela Island, Galapagos Islands, Ecuador
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Tui De Roy / Volcan Alcedo Giant Tortoise (Chelonoidis nigra vandenburghi) group wallowing in mud at night, Alcedo Volcano, Isabela Island, Galapagos Islands, Ecuador
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Konrad Wothe / Leafcutter ants (Atta cephalotes) carrying leaves along a trail, Panguana Reserve, Huanuco Province, Peru.
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Konrad Wothe / Leafcutter ants (Atta cephalotes) carrying leaves along a trail up a tree trunk, Panguana Reserve, Huanuco Province, Peru.
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Konrad Wothe / Army ants (Eciton burcellii) carrying eggs on a trail in a rainforest, Panguana Reserve, Huanuco Province, Peru.
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Juan Carlos Munoz / Gemsbok (Oryx gazella) aerial view of herd on sand, Namib Desert, Namibia.