Shattil & Rozinski / Red fox {Vulpes vulpes} cubs playing, Rocky Mt Arsenal NWR, Colorado, USA

Shattil & Rozinski / Red fox {Vulpes vulpes} cubs playing, Rocky Mt Arsenal NWR, Colorado, USA

Mark Taylor / Boxer bitch and inquisitive ginger kitten.

Mark Taylor / Tabby kitten, Fosset, 10 weeks, with Great Dane puppy, Tia, 14 weeks.

Shattil & Rozinski / Red fox {Vulpes vulpes} cubs play fighting while another looks on, Rocky Mt Arsenal NWR, Colorado, USA

Shattil & Rozinski / Red fox {Vulpes vulpes} cub, Rocky Mt Arsenal NWR, Colorado, USA

Shattil & Rozinski / Three Coyote pups {Canis latrans} Rocky Mt Arsenal NWR, Colorado, USA

Shattil & Rozinski / Red fox {Vulpes vulpes} cub, Rocky Mt Arsenal NWR, Colorado, USA

Shattil & Rozinski / Family of five Red fox {Vulpes vulpes} cubs, Rocky Mt Arsenal NWR, Colorado, USA

Shattil & Rozinski / Red fox {Vulpes vulpes} cub, Rocky Mt Arsenal NWR, Colorado, USA

Shattil & Rozinski / Red fox {Vulpes vulpes} young cub, portrait, Colorado, USA

John Cancalosi / Kit Fox {Vulpes macrotis} with young, Arizona, USA

Tom Vezo / Grey wolf pup amongst flowers (Canis lupus), Montana, USA, captive

Tom Vezo / Female wolf with cubs suckling {Canis lupus} Montana, USA. Captive

Tom Vezo / Grey wolf pup on log {Canis lupus} captive, Montana, USA

Tom Vezo / Grey wolf pup howling {Canis lupus} captive, Montana, USA

Tom Vezo / Grey wolf {Canis lupus} with pups, captive, Montana, USA.

Tom Vezo / Coyote pup {Canis latrans} sniffing flower, captive, USA.

Tom Vezo / Coyote {Canis latrans} pups, captive, Montana, Canada

Tom Vezo / Coyote pup {Canis latrans} captive, Montana, Canada

Shattil & Rozinski / American Red fox {Vulpes vulpes} cub beside 'Private Drive' sign, Colorado, USA

Shattil & Rozinski / American Red fox {Vulpes vulpes} female carrying dead cub away from den followed by another cub, Colorado, USA

Shattil & Rozinski / American Red fox {Vulpes vulpes} female carrying dead cub away from den watched by another cub, Colorado, USA

Shattil & Rozinski / American Red fox cub sitting {Vulpes vulpes} Colorado, USA

Shattil & Rozinski / American Red fox cubs play fighting near den {Vulpes vulpes} Colorado, USA

Shattil & Rozinski / American Red fox cubs near den, one yawning {Vulpes vulpes} Colorado, USA

Shattil & Rozinski / Swift fox female with cubs at den {Vulpes velox} Canada

Shattil & Rozinski / American Red fox female interacting with two young cubs {Vulpes vulpes} Colorado, USA

Shattil & Rozinski / Swift fox female with cubs at den {Vulpes velox} Canada

Shattil & Rozinski / American Red fox cub {Vulpes vulpes} Colorado, USA

Shattil & Rozinski / American Red fox {Vulpes vulpes} resting with cub, Colorado, USA

Shattil & Rozinski / American Red fox, three cubs {Vulpes vulpes} Colorado, USA

Shattil & Rozinski / American Red fox {Vulpes vulpes} parent disciplining cub, Colorado, USA

Shattil & Rozinski / American Red fox female with young cubs near den {Vulpes vulpes} Colorado, USA

Shattil & Rozinski / American Red fox {Vulpes vulpes} with cubs in cemetery, Colorado, USA

Shattil & Rozinski / Three American Red fox cubs sitting {Vulpes vulpes} Colorado, USA

Shattil & Rozinski / American Red fox cubs play fighting {Vulpes vulpes} Colorado, USA

Shattil & Rozinski / American Red fox {Vulpes vulpes} suckling cubs in cemetery, Colorado, USA

Shattil & Rozinski / American Red fox cubs playing {Vulpes vulpes} Colorado, USA

Shattil & Rozinski / American Red fox {Vulpes vulpes} father and cub greeting, Colorado, USA

Shattil & Rozinski / American Red fox {Vulpes vulpes} female with two cubs, one suckling, Colorado, USA

Steve Knell / Arctic fox cub {Vulpes lagopus} front portrait in summer, Fenno-Scandia subspecies, Sweden

Steve Knell / Two Arctic fox cubs {Vulpes lagopus} close to den in summer, Fenno-Scandia subspecies, Sweden