Tony Heald / Tea (Camellia sinensis) leaves in sacks, women counting bags and picking in background. Carolyn Tea Estate, Mango Range, The Nilgiris, Tamil Nadu, India. 2014.

Kirkendall-Spring / Men sorting and counting shrimp caught in the Puget Sound near the City of Edmonds, Washington, USA, May 2018.

Ingo Arndt / Fishery workers counting Sockeye Salmon (Oncorhynchus nerka) aerial photo. Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada October.

SCOTLAND: The Big Picture / Two scientists counting fish as part of the Eddleston Wate Project, where sections of river are being re-naturalised to improve biodiversity and reduce flooding. Peebles, Tweeddale, Scotland, UK, June...

SCOTLAND: The Big Picture / Hands of woman writing on clipboard. Recording fish counts as part of the Eddleston Water Project, where sections of river are being re-naturalised to improve biodiversity and reduce flooding. Peebles...

Nick Upton / Geoff Way of the Environment Agency counting European eel (Anguilla anguilla) elvers using an eel pass beside a weir on a drainage channel on the Somerset Levels by reviewing remote infra red video fo...

Nick Upton / Geoff Way of the Environment Agency counting European eel (Anguilla anguilla) elvers using an eel pass beside a weir on a drainage channel on the Somerset Levels by reviewing remote infra red video fo...

Cyril Ruoso / Pig-tailed Macaque (Macaca nemestrina) trained to pick coconuts, sits on the lap of his owner who is counting his money from coconut sales, Malaysia

Bert Willaert / Bird watchers counting raptors at the Batumi bottleneck, an imortant site for autumn raptor migration, Georgia, September 2011.

Ernie Janes / Collecting up shot Red legged Partridges and pheasants from shoot, UK

Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) being counted and measured by fisheries workers, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada

John Cancalosi / Biologist counting fish swimming past window as they migrate through the ladder at Bonneville Dam, Bonneville Dam's Oregon Shore Counting Station, Columbia River Gorge National Scenic Area, Oregon, US...

Wild Wonders of Europe / Geslin / Warden counting Grey herons in a colony, Padurea Domneasca Nature Reserve, North West Moldova, June 2009

Jeff Rotman / Wildlife biologist counting Sockeye Salmon (Oncorhynchus nerka) as they migrate back to spawn. Birkenhead River, Pemberton, British Columbia, Canada, September 2008 Model released.

Petra Wegner / Domestic Cat 'counting' on an abacus

Michael Hutchinson / Pile of White rhinoceros (Ceratotherium simum) and Black rhinoceros (Diceros bicornis) skulls from poached rhinos collected by rangers on a private reserve to avoid re-counting poached carcasses more...

Michael Hutchinson / Pile of White rhinoceros (Ceratotherium simum) and Black rhinoceros (Diceros bicornis) skulls from poached rhinos collected by rangers on a private reserve to avoid re-counting poached carcasses more...

Flip Nicklin / Salmon (Oncorhynchus sp) in stream being counted by researcher to determine effects of escaped farmed Atlantic Salmon on wild Pacific populations, Clayoquot Sound, Vancouver Island, British Columbia,...

Flip Nicklin / Salmon (Oncorhynchus sp) counted by researchers to determine effects of escaped farmed Atlantic Salmon on wild Pacific populations, Clayoquot Sound, Vancouver Island, British Columbia, Canada

Tui De Roy / Kakapo (Strigops habroptilus) biologist climbing tree to count unripe seeds which will be an indicator whether the kakapo will breed this year, Codfish Island, Southland, New Zealand

Flip Nicklin / Bowhead Whale (Balaena mysticetus) researcher, Sam Payne, counting passing individuals through triangulation, Cornell University project, Alaska

Gary Braasch / Alpine botanist counting and measuring plants to study the affects of climate change, high in the Austrian Alps, Schrankogel Mountain, Austria. August, 2014.

Gary Braasch / Biologist Dr. Terry Chapin (right) and a group of graduate students counting each plant in meter square plots, part of an ecological survey, Toolik Lake, Alaska, USA.

Claudio Contreras / Teresa Luna, from CONANP, recording Olive ridley turtle (Lepidochelys olivacea) nest location so that the number of eggs hatched can be studied later, and Sebastian Garcia, from WILDCOAST, counting eg...

Claudio Contreras / Sebastian Garcia, from WILDCOAST, counting Olive ridley turtle (Lepidochelys olivacea) eggs and the time taken to lay them, during arribada, mass nesting event. Pacific coast, Oaxaca state, Mexico...

Juergen Freund / Coral larvae on a petri dish for counting under microscope. Reared together with algae symbionts after capture of millions of Coral sperm and eggs. Coral IVF project led by Southern Cross University t...

Will Watson / Counting Common Bleak (Alburnus alburnus) whilst electro-fishing, tributary of the River Lugg, Herefordshire, England.

Tui De Roy / Inside Eight weeks and counting in total lockdown. Passing the time in Tui's garden and tiny house consisting of three 20ft shipping containers, Santa Cruz Island, Galapagos Islands April 2020