Burchell's zebras, Rietvlei Nature Reserve, South Africa (© Richard Du Toit/Minden Pictures)

Ice and snow sailing European Championship on Lake Balaton in Hungary (© mauritius images GmbH/Alamy Stock Photo)

Blackbird in Essex, England (© Bill Coster/Alamy)

Blue-green waters around the Bahamas as seen from the International Space Station (© NASA)

Red mangrove tree seedlings in Guanahacabibes National Park, Cuba (© Claudio Contreras/Minden Pictures)

Silbury Hill in the winter snow at sunrise, Avebury, Wiltshire (© Tim Gainey/Alamy)

Statue of Robert Burns in the Birks of Aberfeldy, Perth and Kinross, Scotland (© Dennis Barnes/Getty Images)

Colle Santa Lucia in the Dolomites, Italy (© mauritius images GmbH/Alamy)

Moai statues on Easter Island, Chile (© Karine Aigner/Tandem Stills + Motion)

Mountain hare in Derbyshire, England (© Ben Hall/Minden Pictures)

Kangaroo mother and baby (© Belle Ciezak/Shutterstock)