Yva Momatiuk & John Eastcott / American Beaver (Castor canadensis) a semi-aquatic rodent swimming across calm pond behind beaver dam on mountain river, fall foliage reflectd in water, evening, Denali National Park, Alaska

Richard Du Toit / Cape Buffalo (Syncerus caffer) adult female at water hole with aquatic plants on her head, Sabi Sands Private Game Reserve, South Africa

Doug Gimesy / Forest and wildlife officer (assisted by members of the Australian Defence Force) transfers a Koala (Phascolarctos cinereus) that has been captured for a health check following bush fires in the area,...

Doug Gimesy / Rescued male baby Grey-headed Flying-fox (Pteropus poliocephalus) bottle-fed by wildlife carer Dr Paul Smith. Black Rock, Victoria, Australia. Model released.

Doug Gimesy / Approximately 2 weeks premature, a rescued male baby Grey-headed Flying-fox (Pteropus poliocephalus) is bottle-fed by wildlife carer Bev Brown. Named 'Dinky' he was found the pervious day...

Doug Gimesy / Grey-headed Flying-fox (Pteropus poliocephalus) very young male 'Dinky', cleaned by wildlife carer Bev Brown. This bat was found born two weeks premature with umbilical cord still attached. Black Rock...

Doug Gimesy / Grey-headed Flying-fox (Pteropus poliocephalus) young male 'Dinky' rescued male sleeping after feeding. This orphan was discovered two weeks premature. Black Rock, Victoria, Australia.

Doug Gimesy / Approximately 2 weeks premature, a rescued male baby Grey-headed Flying-fox (Pteropus poliocephalus) is bottle-fed by wildlife carer Bev Brown. Named 'Dinky' he was found the pervious day...

Doug Gimesy / Premature baby Grey-headed Flying-fox (Pteropus poliocephalus) named 'Dinky' fed by carer. Black Rock, Victoria, Australia. Model released.

Nick Upton / Eurasian beaver (Castor fiber) grazing aquatic vegetation, River Otter, Devon, England, UK, June.

Nick Upton / Eurasian beaver (Castor fiber) female grazing aquatic vegetation at dusk, River Otter catchment, England, UK, June.

Remi Masson / Eurasian beaver (Castor fiber) swimming underwater amongst aquatic plants, River Rhone, Rhone-Alpes, France, June.

Sylvain Cordier / Amazon river dolphin (Inia geoffrensis) leaping out of water, Rio Negro, Amazonas, Brazil.

Sylvain Cordier / Local fisherman feeding wild Amazon river dolphin (Inia geoffrensis) Rio Negro, Amazonas, Brazil.

Sylvain Cordier / Amazon river dolphin (Inia geoffrensis) Rio Negro, Amazonas, Brazil.

Nick Upton / Daubenton's bat (Myotis daubentonii) migrant hunting in daylight for aquatic insects over coastal grassland, Matsalu Bay, Haeska, Estonia, September.

Nick Upton / Water Vole (Arvicola terrestris) eating a flowering grass stem on the margin of a small lake at sunset light, Cornwall, UK, June.

Yva Momatiuk & John Eastcott / Hippopotamus (Hippopotamus amphibius) male and sub-adults in waterhole covered by aquatic vegatation, Kruger National Park, South Africa

Terry Whittaker / Water vole (Arvicola amphibius) feeding on aquatic plant, Kent, UK May

Terry Whittaker / Water vole (Arvicola amphibius) feeding on aquatic plant, Kent, UK May

Terry Whittaker / Water vole (Arvicola amphibius) feeding on aquatic plant, Kent, UK June

Terry Whittaker / Water vole (Arvicola amphibius) feeding, Kent, UK May

Terry Whittaker / Water vole (Arvicola amphibius) juvenile feeding on Water crowfoot (Ranunculus fluitaris) Kent, UK June

Terry Whittaker / Water vole (Arvicola amphibius) juvenile feeding on Water crowfoot (Ranunculus fluitaris) Kent, UK June

Terry Whittaker / Water vole (Arvicola amphibius) feeding on plant, Kent, UK May

Terry Whittaker / Young Water Vole (Arvicola amphibius), Kent, UK

Terry Whittaker / Water vole (Arvicola amphibius) about to enter water, Kent, UK May

Terry Whittaker / Water vole (Arvicola amphibius) collecting nesting material, Kent, UK May

Terry Whittaker / Water vole (Arvicola amphibius) feeding on Water crowfoot (Ranunculus sp) Kent, UK May

Terry Whittaker / Water vole (Arvicola amphibius) feeding on Water crowfoot (Ranunculus sp) Kent, UK May

Terry Whittaker / Water vole (Arvicola amphibius) feeding on Water crowfoot (Ranunculus sp) Kent, UK May

Terry Whittaker / Water vole (Arvicola amphibius) feeding on Water crowfoot (Ranunculus sp) Kent, UK May

Terry Whittaker / Water vole (Arvicola amphibius) profile by reeds, Kent, UK May

Terry Whittaker / Water vole (Arvicola amphibius) feeding on aquatic plant, Kent, UK May

Terry Whittaker / Water vole (Arvicola amphibius) feeding on aquatic plant, Kent, UK May

George Sanker / Muskrat (Ondatra zibethicus) in water feeding on aquatic plants, tail above water, Acadia National Park, Maine, USA.

Nick Upton / Two Eurasian beaver (Castor fiber) kits feeding at night, born in the wild on the River Otter, part of a release project managed by the Devon Wildlife Trust, Devon, England, UK, August 2015.

Nick Upton / Two Eurasian beaver (Castor fiber) kits feeding on Willow (Salix) at night, born in the wild on the River Otter, part of a release project managed by the Devon Wildlife Trust, Devon, England, UK, Augu...

Nick Upton / Eurasian beaver (Castor fiber) kit feeding on Willow (Salix) at night, born in the wild on the River Otter, part of a release project managed by the Devon Wildlife Trust, Devon, England, UK, August 20...

Nick Upton / Young Eurasian beaver (Castor fiber) kit swimming at dusk, born in the wild on the River Otter, part of a release project managed by the Devon Wildlife Trust, Devon, England, UK, August 2015.

Nick Upton / Young Eurasian beaver (Castor fiber) feeding on a willow branch overhanging the River Otter at dusk, part of a release project managed by the Devon Wildlife Trust, Devon, England, UK, August 2015.

Nick Upton / Eurasian beaver (Castor fiber) kit feeding on Willow (Salix) leaves at night, born in the wild on the River Otter, part of a release project managed by the Devon Wildlife Trust, Devon, England, UK, Au...

Nick Upton / Eurasian beaver (Castor fiber) kit feeding on Willow (Salix), born in the wild on the River Otter, part of a release project managed by the Devon Wildlife Trust, Devon, England, UK, August 2015.

Nick Upton / Eurasian beaver (Castor fiber) kit feeding on Willow (Salix), born in the wild on the River Otter, part of a release project managed by the Devon Wildlife Trust, Devon, England, UK, August 2015.

Nick Upton / Ear-tagged adult female Eurasian beaver (Castor fiber) swimming on the River Otter at dusk, part of a release project managed by the Devon Wildlife Trust, Devon, England, UK, August 2015.

Nick Upton / V-dam measuring station monitoring water flow and quality above a series of dams built by Eurasian beavers (Castor fiber) within large enclosure, Devon Beaver Project, Devon Wildlife Trust, Devon, UK,...

Nick Upton / V-dam measuring station monitoring water flow and quality above a series of dams built by Eurasian beavers (Castor fiber) within large enclosure, Devon Beaver Project, Devon Wildlife Trust, Devon, UK,...

Nick Upton / Juvenile Eurasian beaver (Castor fiber) swimming in dammed stream in large enclosure, Devon Beaver Project, run by Devon Wildlife Trust, Devon, UK, May.

Nick Upton / Downy birch tree (Betula pubescens) heavily gnawed by Eurasian beavers (Castor fiber) and close to being felled, in large enclosure, Devon Beaver Project, Devon Wildlife Trust, Devon, UK, May.

Nick Upton / Adult male Eurasian beaver (Castor fiber) with identifying ear tag swimming at sunset among felled trees dammed stream within large enclosure, Devon Beaver Project, run by Devon Wildlife Trust, Devon,...

Nick Upton / Adult male Eurasian beaver (Castor fiber) with identifying ear tag swimming at sunset among felled trees dammed stream within large enclosure, Devon Beaver Project, run by Devon Wildlife Trust, Devon,...

Nick Upton / Rear, webbed footprint of Eurasian beaver (Castor fiber) in mud within enclosure, Devon Beaver Project, Devon Wildlife Trust, Devon, UK, May.

Nick Upton / Eurasian beaver (Castor fiber) dam within woodland enclosure, Devon Beaver Project, Devon Wildlife Trust, Devon, UK, May.

Nick Upton / Eurasian beaver (Castor fiber) using its front legs to lift and add mud and vegetation onto its dam, in woodland enclosure at night, Devon Beaver Project, run by Devon Wildlife Trust, Devon, UK, May....

Nick Upton / Willow tree (Salix sp.) felled and most of its bark stripped off by Eurasian beavers (Castor fiber) on the banks of the River Otter, Devon, UK, May.

Nick Upton / Willow tree (Salix sp.) felled and most of its bark stripped off by Eurasian beavers (Castor fiber) on the banks of the River Otter, Devon, UK, May.

Nick Upton / V-dam measuring station monitoring water flow and quality below a series of dams built by Eurasian beavers (Castor fiber) within enclosure, Devon Beaver Project, Devon Wildlife Trust, Devon, UK, May.

Nick Upton / V-dam measuring station monitoring water flow and quality below a series of dams built by Eurasian beavers (Castor fiber) within enclosure, Devon Beaver Project, Devon Wildlife Trust, Devon, UK, May.

Jabruson Motion / THIS VIDEO CLIP WILL BE AVAILABLE TO VIEW ONLINE SOON. TO VIEW NOW, PLEASE CONTACT US. -Flock of Congo african grey parrots (Psittacus erithacus erithacus) feeding on aquatic plants in a forest cleari...

Donald M. Jones / American Elk (Cervus elaphus nelsoni) bull feeding on aquatic plants, western Montana

Michael Quinton / Alaska Moose (Alces alces gigas) male foraging for aquatic vegetation, Alaska

Yva Momatiuk & John Eastcott / Alaska Moose (Alces alces gigas) mother and calf feeding on aquatic vegetation in pond, Denali National Park, Alaska

Yva Momatiuk & John Eastcott / Alaska Moose (Alces alces gigas) mother and calf feeding on aquatic vegetation in pond, Denali National Park, Alaska

Hiroya Minakuchi / Pig-tailed Macaque (Macaca nemestrina) foraging on aquatic vegetation by hanging from branches, Borneo, Malaysia

Yva Momatiuk & John Eastcott / Alaska Moose (Alces alces gigas) orphaned calf feeding on aquatic vegetation in fall tundra, Denali National Park, Alaska

Yva Momatiuk & John Eastcott / American Beaver (Castor canadensis) a semi-aquatic rodent swimming branches across calm pond behind beaver dam, fall evening, Denali National Park, Alaska

Yva Momatiuk & John Eastcott / Alaska Moose (Alces alces gigas) cow, largest herbivore in North America, feeding on aquatic vegetation with important salts in shallow glacial kettle pond in colorful fall tundra, Denali National Par...

Ingo Arndt / European River Otter (Lutra lutra) detail of webbed paw, Europe

Gerry Ellis / North American River Otter (Lontra canadensis) portrait with head out of water, Sub-arctic Aquatic, North America

Flip de Nooyer / European Beaver (Castor fiber) nibbling vegetation in shallow water, Europe

Tui De Roy / West Indian Manatee (Trichechus manatus) foraging on aquatic vegetation, Crystal River, Florida

Tui De Roy / West Indian Manatee (Trichechus manatus) foraging on aquatic vegetation, Crystal River, Florida

Fred Bavendam / West Indian Manatee (Trichechus manatus) grazing on aquatic vegetation, Blue Spring State Park, Florida

Pete Oxford / Giant otter amongst aquatic plants {Pteronura brasiliensis} Pantanal, Brazil, South America

Piotr Naskrecki / Red River Hog (Potamochoerus porcus) feeding on aquatic vegetation, Gorongosa National Park, Mozambique

Sebastian Kennerknecht / Marsh Deer (Blastocerus dichotomus) buck feeding on aquatic plants in marsh with Cattle Tyrant (Machetornis rixosus) on back, Ibera Provincial Reserve, Ibera Wetlands, Argentina

Donald M. Jones / White-tailed Deer (Odocoileus virginianus) feeding on aquatic vegetation in creek, western Montana

Donald M. Jones / Elk (Cervus elaphus) bull feeding on aquatic vegetation, central Montana

Yva Momatiuk & John Eastcott / Hippopotamus (Hippopotamus amphibius) male covered with aquatic vegetation, Kruger National Park, South Africa

Yva Momatiuk & John Eastcott / Hippopotamus (Hippopotamus amphibius) sub-adult covered with aquatic vegetation, Kruger National Park, South Africa

Martin Camm / Carwardine / Arnoux's beaked whale (Berardius arnuxii) Southern beaked whale; family: Ziphidae (Wildlife Art Company). *telclass

Yva Momatiuk & John Eastcott / American Beaver (Castor canadensis) a semi-aquatic rodent swimming across tundra pond behind beaver dam, with colorful reflections of fall tundra and vegetation on water ripples created by its passage...

Konrad Wothe / Hippopotamus (Hippopotamus amphibius) defecating in the water, Aquatic Sub-Sahara Africa

Suzi Eszterhas / Orangutan (Pongo pygmaeus) sub-adult male feeding on aquatic vegetation, Tanjung Puting National Park, Borneo, Indonesia

Suzi Eszterhas / Orangutan (Pongo pygmaeus) sub-adult male foraging for aquatic vegetation, Tanjung Puting National Park, Borneo, Indonesia

Dr. Axel Gebauer / Aerial view of Red deer (Cervus elaphus) walking through pond with Water caltrop (Trapa natans) and blue bacteria, surrounded by Reedbeds (Phragmites australis), Biosphere Reserve, Upper Lusatia, Pola...

David Pattyn / Herd of cattle standing in river among Fringed water lilies (Nymphoides peltata), Danube delta, Romania. July.

George Sanker / Moose (Alces alces) female with calf, feeding on aquatic plants in shallow river, Baxter State Park, Maine, USA.

Daniel Nunez / Baird's tapir (Tapirus bairdii) wearing radio collar, wading through wetland vegetation, Calakmul Bioshpere Reserve, Campeche Mexico. Cropped.

Doug Gimesy / Tracy Lyten, from Skylos Ecology, undertaking kayak training with female Conservation detector dog, in preparation for work to sniff (via kayak) for invasive aquatic weeds; often Common cordgrass (Spa...

Doug Gimesy / Dog handler from Skylos Ecology undertaking kayak training with female Conservation detector dog, in preparation for work to sniff (via kayak) for invasive aquatic weeds; often Common cordgrass (Spart...

Doug Gimesy / Dog handler from Skylos Ecology undertaking kayak training with female Conservation detector dog, in preparation for work to sniff (via kayak) for invasive aquatic weeds; often Common cordgrass (Spart...

Doug Gimesy / Dog handler from Skylos Ecology undertaking kayak training with female Conservation detector dog, in preparation for work to sniff (via kayak) for invasive aquatic weeds; often Common cordgrass (Spart...

Doug Gimesy / Dog handler from Skylos Ecology undertaking kayak training with female Conservation detector dog, in preparation for work to sniff (via kayak) for invasive aquatic weeds; often Common cordgrass (Spart...