Jaymi Heimbuch / Santa Catalina Island Fox (Urocyon littoralis catalinae) biologist, Julie King, near live trapped fox during vaccination and health check up, Santa Catalina Island, Channel Islands, California

Nick Upton / Natterer's bat (Myotis nattereri) flying into a harp trap set during an autumn swarming survey undertaken by members of Wiltshire Bat Group, Box Mine, Wiltshire, England, UK, September. Model released...

Nick Upton / Hedgehog (Erinaceus europaeus) feeding on meat-based hedgehog pellets in a home-made hedgehog feeder box with a narrow entrance designed to exclude cats and foxes, at night, suburban garden, Chippenha...

Nick Upton / Hedgehog (Erinaceus europaeus) feeding on meat-based hedgehog pellets in a home-made hedgehog feeder box with a narrow entrance designed to exclude cats and foxes, at night, suburban garden, Chippenha...

Nick Upton / Hedgehog (Erinaceus europaeus) entering a home-made hedgehog feeder box to feed on meat-based hedgehog pellets at night, suburban garden, Chippenham, Wiltshire, UK, August. Taken with a remote camera...

Sebastian Kennerknecht / Mountain Lion (Puma concolor) biologist, Chris Wilmers, next to sub-adult male in box trap during collaring, Santa Cruz Puma Project, Santa Cruz, Monterey Bay, California

Nick Upton / Wiltshire Bat Group member retrieving a bat from the collecting trough of a harp trap set inside Box mine during an autumn swarming survey run by Wiltshire Bat Group, Box, Wiltshire, UK, September. Mo...

Nick Upton / Wiltshire Bat Group members retriveing a bat from the collecting trough of a harp trap set inside Box mine during an autumn swarming survey run by Wiltshire Bat Group, Box, Wiltshire, UK, September. M...

Nick Upton / Mist net being set across a cave entrance for bats during an autumn swarming survey run by the Wiltshire Bat Group, near Box, Wiltshire, UK, September. Model released.

Eric Medard / House mice (Mus musculus) fighting in a basement. Taken at night with infra-red remote camera trap, Mayenne, France, May.

Nick Upton / 2020VISION / Mammalogist Emma Koblizek inspects a small mammal caught in a Longworth trap tipped into a temporary holding box during Abbots Pool and woodland reserve Bioblitz, Bristol, UK, June 2012. Model release...

Jaymi Heimbuch / Santa Catalina Island Fox (Urocyon littoralis catalinae) biologist, Julie King, removing fox from trap during vaccination and health check up, Santa Catalina Island, Channel Islands, California