Nick Upton / Harvest mouse (Micromys minutus) cleaning its nose on Common hogweed (Heracleum sphondylium) flowerhead after release, Moulton, Northampton, UK, June.

Francisco Marquez / Greater flamingo (Phoenicopterus ruber) juveniles and a few adults kept temporarily in an enclosure for ringing, Fuente de Piedra lagoon, Malaga, Spain. August.

Francisco Marquez / Greater flamingo (Phoenicopterus ruber) juveniles and a few adults kept temporarily in an enclosure for ringing, Fuente de Piedra lagoon, Malaga, Spain. August.

Francisco Marquez / Volunteers rounding up Greater flamingo (Phoenicopterus ruber) juveniles for ringing, Fuente de Piedra lagoon, Malaga, Spain. August.

Juergen Freund / Scientists studying response to wet-dry seasonal transition in rainforest trees, in basket lifted by crane. Daintree rainforest observatory, Queensland, Australia. February 2015

Juergen Freund / Scientists studying response to wet-dry seasonal transition in rainforest trees, in basket lifted by crane. Daintree rainforest observatory, Queensland, Australia. February 2015

Juergen Freund / Scientists studying response to wet-dry seasonal transition in rainforest trees, in basket lifted by crane. Daintree rainforest observatory, Queensland, Australia. February 2015

Juergen Freund / Low angle view of crane used for studying tree canopy at Daintree rainforest observatory, Queensland, Australia. February 2015

Juergen Freund / Guttering to redirect water at the Daintree Drought Experiment, where rainforest plants grown under cover to see how they respond to drought. Daintree Rainforest Observatory, northern Queensland, Aust...

Juergen Freund / Scientist Susan Laurance leads the Daintree Drought Experiment in far north Queensland. The experiment combines the efforts of plant physiologists, ecologists, soil experts, climatologists and hydrolo...

Juergen Freund / Dr. Alex Cheesman researching changes in phloem flux to environmental variables in two tropical forest canopy tree species at the Daintree Rainforest Observatory, Queensland, Australia. February 2015....

Stefan Christmann / Milky way and moonbow halo during polar night. Above Neumayer-Station III, Alfred-Wegener-Institut research station, Atka Bay, Antarctica. June 2017.