Konstantin Mikhailov / Asian globeflower (Trollius asiaticus) flowering in subalpine meadows of the Altai-Sayan Region, in particular in Kuznetsky Alatau State Nature Reserves, Siberia, Far East Russia,

David Fleetham / Painted frogfish (Antennarius pictus) with first dorsal spine and lure extended to attract prey. Dumaguete, Philippines.

Paul D Stewart / Portrait of the Ulisse Aldrovandi (1522-1605) Italian scientist, in particular a naturalist and physician. He taught in Bologna and his work 'Antidotarii Bononiensis Epitome' (1574) described the prop...

Floris van Breugel / Bizzare sculptures of basalt formed through thousands of years of erosion, Snake River Valley, southern Idaho. This particular piece was likely formed sometime in the Pliocene period about 2-3 million...

David Pattyn / Great Crested grebes (Podiceps cristatus) two males fighitng for the right to mate at a particular mating spot, La Dombes lake area, France, June

Kristel Richard / Six Fantini (jockeys), in the colours of a particular district of Asti, race bareback in the Palio, on the third Sunday of September, in Asti, Piedmont, Italy. The jockeys gallop at full speed to win...

Kristel Richard / One of the 1,200 participants in medieval costume taking part in the historical procession on the Sunday just before the Palio, Asti, Piedmont, Italy. Each participant wears the colours representing a...

Kristel Richard / One of the 1,200 participants in medieval costume taking part in the historical procession on the Sunday just before the Palio, Asti, Piedmont, Italy. Each participant wears the colours representing a...

Kristel Richard / One of the Fantini (jockeys), in the colours of a particular district of Asti, takes part in the single trials on the Friday before the Palio, Asti, Piedmont, Italy. All the jockeys ride bareback, Sep...

Kristel Richard / One of the Fantini (jockeys), in the colours of a particular district of Asti, takes part in the single trials on the Friday before the Palio, Asti, Piedmont, Italy. The jockeys take it easy during th...

Kristel Richard / Three Fantini (jockeys), in the colours of a particular district of Asti, take part in the team trials on the Saturday before the Palio, Asti, Piedmont, Italy. The jockeys take it easy during these tr...

Kristel Richard / Four Fantini (jockeys), in the colours of a particular district of Asti, take part in the team trials on the Saturday before the Palio, Asti, Piedmont, Italy. The jockeys take it easy during these tri...

Angelo Gandolfi / Yacare Caiman (Caiman yacare) with mouth open to keep cool, Pantanal, Brazil.