Steven David Miller / An Orange lacewing butterfly (Cethosia penthesilea), Cairns Botanical Gardens, Queensland, Australia. Captive. August.

Steve Downer / Juvenile Common frog (Rana temporaria) on back of a Common snail (Cornu aspersum), UK, June.

Steve Downer / Juvenile Common frog (Rana temporaria) on back of a Common snail (Cornu aspersum), UK, June.

Alex Hyde / Leaf-cutter ant (Atta cephalotes) carrying pieces of leaf that they have harvested back to their underground fungus garden in their nest, Osa Peninsula, Costa Rica

Alex Hyde / Leaf-cutter ants (Atta cephalotes) carrying pieces of leaf that they have harvested back to their underground fungus garden in their nest, Osa Peninsula, Costa Rica. Photographed in mobile field studi...

Alex Hyde / Leaf-cutter ants (Atta cephalotes) carrying pieces of leaf that they have harvested back to their underground fungus garden in their nest, Osa Peninsula, Costa Rica. Photographed in mobile field studi...

Rob Cousins / Sparrowhawk (Accipiter nisus) perched on bird feeder, Devon, UK, September.

Konrad Wothe / Black kitten in garden, Germany

Florian Möllers / Grey heron (Ardea cinerea) adult in breeding plumage, close-up of head and colourful orange beak, backlit, Berlin Zoological Garden, Berlin Zoo, Germany. February.

Petra Wegner / Siberian forest cat kitten walking, 7 weeks, white coat

Ernie Janes / Conference Pear tree (Pyrus communis) growing against wall in garden, UK

LYNN M. STONE / Pair of English Springer Spaniels, one black and white, one liver and white, amongst autumn leaves with pumpkins in cart, Illinois, USA