Juergen Freund / Dr. Yoko Ishida at the Daintree Drought Experiment downloads data from the trees carrying her scientific instruments. Daintree Rainforest Observatory, Queensland, Australia. September 2015

Juergen Freund / Scientific instruments attached to trees to measure many different elements: carbon dioxide exhaled; tree's water intake and flow; growth rate. Daintree Rainforest Observatory, Queensland, Austral...

Juergen Freund / Scientific instruments attached to trees to measure many different elements: carbon dioxide exhaled; tree's water intake and flow; growth rate. Daintree Rainforest Observatory, Queensland, Austral...

Nick Upton / Researcher radiotracking Siberian flying squirrel (Pteromys volans) in mature mixed forest. Muraka Forest Reseve, near Lisaku, Estonia. April 2018.

Nick Upton / Researcher setting trailcam to monitor Siberian flying squirrel (Pteromys volans) nest hole. Mature mixed forest, near Lisaku, Estonia. April 2018. Model released.

Nick Upton / Researcher radio tracking Siberian flying squirrel (Pteromys volans) in mature mixed forest. Muraka Forest Reseve, near Lisaku, Estonia. April 2018. Model released.

Nick Upton / Research team preparing to radio collar Siberian flying squirrel (Pteromys volans) caught in a trap. Muraka Forest Reserve, near Lisaku, Estonia. April 2018. Model released.

David Woodfall / Sweat bee (Halictidae) nest hole marked with nails by scientific researchers. Knepp Wildland Project, formerly intensive farmland now turned to conservation and sustainable farming. Horsham, West Suss...

Will Watson / Llyn Cwm Llwch glacial lake and Corn Du mountain. Site of Special Scientific Interest (SSSI) and Geological Conservation Review Site. Brecon Beacons National Park, Breconshire, Wales, UK. July, 2018.

Karine Aigner / Hermit thrush (Catharus guttatus) captive during scientific study, with a wax worm. This bird is part of a study about weight gain, diet and condition prior to migration. Once the thrush has reached i...

Karine Aigner / Biologist taking blood samples from Hermit thrush (Catharus guttatus) for scientific study looking at antioxidant capacity in blood and oxidative damage caused during migration. Block island, Rhode I...

Karine Aigner / Portrait of a Brown creeper, (Certhia americana) with white background, Block island, Rhode Island, USA. Bird caught during scientific research.