Terry Whittaker / 2020VISION / Pine marten (Martes martes) 4-5 month kit walking along branch in caledonian forest, The Black Isle, Highlands, Scotland, UK, July

Terry Whittaker / 2020VISION / Pine marten (Martes martes) rear view of adult female standing up with 4-5 month kit in caledonian forest, The Black Isle, Highlands, Scotland, UK, July.

Terry Whittaker / 2020VISION / Pine marten (Martes martes) rear view of adult female standing up with 4-5 month kit in caledonian forest, The Black Isle, Highlands, Scotland, UK, July

Terry Whittaker / 2020VISION / Pine marten (Martes martes) 4-5 month kit in caledonian forest, The Black Isle, Highlands, Scotland, UK, July. Did you know? Despite their small size Pine martens defend territories up to 25 km2.

Suzi Eszterhas / Bat-eared Fox (Otocyon megalotis) pups outside of den, Masai Mara, Kenya

Suzi Eszterhas / Bat-eared Fox (Otocyon megalotis) parent and pup, Masai Mara, Kenya

Suzi Eszterhas / Bat-eared Fox (Otocyon megalotis) parent with five day old pups at den entrance, Masai Mara National Reserve, Kenya

Donald M. Jones / Red Fox (Vulpes vulpes) kits, Montana

Donald M. Jones / Red Fox (Vulpes vulpes) mother and kit at den, western Montana

Donald M. Jones / Red Fox (Vulpes vulpes) kits, Montana

Chase Dekker / Red Fox (Vulpes vulpes) kit, Washington

Yva Momatiuk & John Eastcott / Red Fox (Vulpes vulpes) kit yawning on ridge near den, North Slope, Alaska

Jasper Doest / Arctic Fox (Alopex lagopus) kits playing, Svalbard, Norway

Gerry Ellis / Red Fox (Vulpes vulpes) kit in log, Aspen Valley, Ontario, Canada

Gerry Ellis / Red Fox (Vulpes vulpes) kit in log, Aspen Valley, Ontario, Canada

Konrad Wothe / Red Fox (Vulpes vulpes) mother play fighting with kit who has fallen into the lake, North America, sequence 1 of 2

Konrad Wothe / Striped Skunk (Mephitis mephitis) kit on log with raised tail to spray, North America

Konrad Wothe / Striped Skunk (Mephitis mephitis) kit pair in a log, North America

Tim Fitzharris / Red Fox (Vulpes vulpes) kit, North America

Tim Fitzharris / Red Fox (Vulpes vulpes) trio of kits peeking out of their den, North America

Tim Fitzharris / Striped Skunk (Mephitis mephitis) kit, North America

Terry Whittaker / Pine marten (Martes martes) female and kit play fighting amongst moss in coniferous forest at night. Loch Lomond and The Trossachs National Park, Scotland, UK. September. Camera trap image.

Terry Whittaker / Pine marten (Martes martes) female and kit sniffing amongst moss, in coniferous forest at night. Loch Lomond and The Trossachs National Park, Scotland, UK. July. Camera trap image.

Terry Whittaker / Pine marten (Martes martes) female and kit standing amongst moss in coniferous forest at dusk. Loch Lomond and The Trossachs National Park, Scotland, UK. July. Camera trap image.

Eric Medard / Red fox (Vulpes vulpes) kit on tree stump, Switzerland, April.

Suzi Eszterhas / Striped skunk (Mephitis mephitis) kit aged one month in hand of carer, orphaned in road collision. Sarvey Wildlife Care Center, Arlington, Washington, USA. June 2015.

Suzi Eszterhas / Striped skunk (Mephitis mephitis) kit aged one month in hand of carer, orphaned in road collision. Sarvey Wildlife Care Center, Arlington, Washington, USA. June 2015.

Robin Chittenden / Common otter (Lutra lutra) female and kit resting on old jetty. East Anglia, England, UK. April.

Terry Whittaker / Pine marten (Martes martes) female and kit age eight weeks, Black Isle, Scotland, UK. June 2017. Photographed by camera trap.

Marie Read / Equipment set up for remote control photography at nest hole of Great Crested Flycatcher (Myiarchus crinitus), New York, USA. Camera, fitted with wide angle lens, mounted on monopod attached to ladder...

Marie Read / Backyard setup for photographing Ruby-throated Hummingbirds (Archilocus colubris) in summer, New York, USA. A natural food plant (cardinal flower (Lobelia cardinalis)) in a floral tube of water is tie...

Nick Upton / Female Eurasian beaver (Castor fiber) feeding from a felled Willow tree (Salix) with kit, River Otter, Devon, England, UK, June.

Suzi Eszterhas / North American beaver (Castor canadensis) kit eating Willow (Salix sp). Martinez, California, USA. July.

Suzi Eszterhas / North American beaver (Castor canadensis) kit playing with Willow (Salix sp) at water's edge. Martinez, California, USA. June.

Suzi Eszterhas / North American beaver (Castor canadensis), orphaned kit swimming in sink. Lindsay Wildlife Experience, Walnut Creek, Contra Costa County, California, USA. September 2015. Captive. Digitally enhanced.

Suzi Eszterhas / North American beaver (Castor canadensis) orphaned kit feeding from syringe. Lindsay Wildlife Experience, Walnut Creek, Contra Costa County, California, USA. September 2015. Captive.

Eric Medard / Red fox (Vulpes vulpes) kit, France. May.

Ashley Cooper / Red Cross shelter tool kits waiting to be airlifted into areas affected by the January 2015 flood. Malawi, March 2015.

Terry Whittaker / Pine marten (Martes martes) eight week kit with egg, Black Isle, Scotland, UK. June.

Vincent Wildlife Trust / Pine martin (Martes martes) kit sleeping in owl nest box. These kits were born in Wales to parents released in translocation programme by the Vincent Wildlife Trust. Cambrian Mountains, Wales, UK. May...

Sylvain Cordier / European rabbit (Oryctolagus cuniculus), kit age 12 days, Haute Saone, France, May.

Sylvain Cordier / European Rabbit (Oryctolagus cuniculus) kit age 12 days, Haute Saone, France, May.

Sylvain Cordier / Young girl with domestic rabbit kit, Alsace, France Model released.

Nick Upton / Female Eurasian beaver (Castor fiber) grooming, with kit suckling, Devon, England, UK, July. Part of Devon Wildlife Trust's Devon Beaver Trial.

Nick Upton / Pair of Eurasian beavers (Castor fiber) grooming, with kit feeding nearby, Devon, England, UK, July. Part of Devon Wildlife Trust's Devon Beaver Trial.

Nick Upton / Female Eurasian beaver (Castor fiber) and kit feeding on a Willow (Salix) sapling, River Otter, Devon, England, UK, July. Part of Devon Wildlife Trust's Devon Beaver Trial.

Nick Upton / Female Eurasian beaver (Castor fiber) and kit feeding on a Willow (Salix) sapling, River Otter, Devon, England, UK, July. Part of Devon Wildlife Trust's Devon Beaver Trial.

Nick Upton / Female Eurasian beaver (Castor fiber) and kit feeding on a Willow (Salix) sapling, River Otter, Devon, England, UK, July. Part of Devon Wildlife Trust's Devon Beaver Trial.