Anup Shah / Eastern Chimpanzee (Pan troglodytes schweinfurthii) four year old infant male, named Gizmo, foraging for insects in log, Gombe National Park, Tanzania

Marie Read / Wood Ducks (Aix sponsa), females behave aggressively toward a male (second from right) that is trying to join them on a floating log, autumn, New York, USA, October.

Nick Upton / Red mason bees (Osmia bicornis) entering and leaving nest hole drilled into a log within an insect hotel, Gloucestershire, England, UK, April.

Doug Gimesy / Platypus (Ornithorhynchus anatinus), released onto a log in Little Yarra River, Yarra junction, Victoria, Australia. Photographed under controlled conditions. April 2018.

Doug Gimesy / Platypus (Ornithorhynchus anatinus) just released onto a log in Little Yarra River, Yarra Junction, Victoria, Australia. April 2018. Controlled conditions.

Pal Hermansen / Logged forest, aerial view. Akershus, Norway. November 2018.

Dave Bevan / Clear felling harvester working in a conifer plantation, Carmarthenshire, Wales, UK, June.

John Chan / Honey bees (Apis mellifera) gathering at the entrance to their nest in a hollowed log, Bolsa Chica Ecological Reserve, California, USA, September.

John Chan / Honey bees (Apis mellifera) gathering at the entrance of their nest in a hollow log, with some returning workers carrying pollen baskets, Bolsa Chica Ecological Reserve, California, USA, October.

Alex Hyde / Cup fungi (Cookeina sp) growing on decaying log, Danum Valley, Sabah, Borneo.

Tim Fitzharris / Clouds at sunset, Black Canyon of the Gunnison National Park, Colorado

Tim Fitzharris / String Lake and the Grand Tetons, Grand Teton National Park, Wyoming