Russell Cooper / Male Speckled wood butterfly (Pararge aegeria) sunning on leaf, South London, UK, August

Fergus Gill / 2020VISION / Speckled wood butterfly (Pararge aegeria) resting on a rock, Atlantic Oakwoods, Sunart, Scotland, May.

Fergus Gill / 2020VISION / Speckled wood butterfly (Pararge aegeria) resting on dead bracken, Atlantic Oakwoods, Sunart, Scotland, May.

Fergus Gill / 2020VISION / Speckled wood butterfly (Pararge aegeria) resting on dead oak leaves at sunset, Atlantic Oakwoods, Sunart, Scotland, May. Did you know? Butterflies can remember things they have learnt as a caterpilla...

Andrew Parkinson / Rock ptarmigan (Lagopus mutus) adult male, its plumage changing from winter white to summer brown, perched on rock. Cairngorm Mountains, Scotland, UK, April.

Andrew Parkinson / Rock ptarmigan (Lagopus mutus) adult male, its plumage changing from winter white to summer brown, in snow, Cairngorm Mountains, Scotland, UK, April.

Russell Cooper / Male Speckled wood butterfly (Pararge aegeria) resting on bramble, London. UK.

Russell Cooper / Speckled wood butterfly (Pararge aegeria) on leaf, South London, UK

Robert Valentic / Speckled brown snake {Pseudonaja guttatus} male banded phase gapes and flattens its hood in threat display, Barkly Tableland, Northern Territory, Australia

Robert Valentic / Speckled brown snake {Pseudonaja guttatus} male with tongue flicking in response to danger, Barkly Tableland, Northern Territory, Australia

Robert Valentic / Speckled brown snake {Pseudonaja guttatus} male alert for danger while basking, if threatened it will retire into deep soil cracks, Comooweal, Queensland, Australia

Kim Taylor / Meadow brown butterfly {Maniola jurtina} female basking on vegetation with Speckled bush cricket {Leptophyes punctatissima} Europe.