© South Africa, Kruger National Park, Zebras and Impalas in grassy field

© Scientific samples in microplate being prepared for research in laboratory

© Scientific samples in microplate being prepared for research in laboratory

© The Netherlands, Friesland, Birds migrating via Wadden Sea nature reserve

© The Netherlands, Zuid-Holland, Container terminal in port of Rotterdam

© The Netherlands, Zuid-Holland, Container terminal in port of Rotterdam

© Cows grazing in pasture under big sky covered with vapor trails

© The Netherlands, Zuid-Holland, Container terminal in port of Rotterdam

© The Netherlands, Noord-Holland, Aerial view of green polders

© Bahamas, Nassau, Sharks swimming near shipwreck in sea

© Bahamas, Nassau, Fish swimming in sea

© Bahamas, Nassau, School of Butterflyfish swimming near rusty part of shipwreck

© Cows near small river Geul in spring

© Cows near small river Geul in spring

© Cows near small river Geul in spring

© Senior woman sitting on bench on boardwalk

© Senior woman wearing sun hat

© Senior woman wearing sun hat

© Smiling senior woman by window

© Smiling senior woman looking through window

© Riussia, Ural ,Boys (10-11) playing ice hockey

© Firefighters standing on field at night

© Trapiche Gamboa, considered to be one of the best places to hear live Samba music, Lapa

© Teenage girls (14-15) riding horses

© Overhead view of multi-ethnic athletes running on footpath