Nick Hawkins / A young moose (Alces alces) with a condition known as 'ghost moose' which is caused by heavy tick infestation, New Brunswick, Canada. August

Suzi Eszterhas / Isabel Luevano, Rehabilitation Technician, and volunteer, examining Brown pelican (Pelecanus occidentalis) that is suffering from malnutrition International Bird Rescue, Fairfield, California, USA, M...

Suzi Eszterhas / Brandt's Cormorant (Phalacrocorax penicillatus) pellet of worms coughed up by cormorant International Bird Rescue, Fairfield, California

Jeff Foott / Mountain Pine Beetle (Dendroctonus ponderosae) killed trees, Jasper National Park, Alberta, Canada

Jeff Foott / Mountain Pine Beetle (Dendroctonus ponderosae) killed trees, Jasper National Park, Alberta, Canada

Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead trees killed by Mountain Pine Beetle (Dendroctonus ponderosae), El Capitan, Yosemite National Park, California

Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead tree, with pitch tube, killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California

Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead trees killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California

Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead trees killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California

Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead trees killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California

Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead trees killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California

David Perpinan / Cachectic or emaciated captive Bearded dragon (Pogona vitticeps) confiscated by police due to poor care'United Kingdom. Small repro only