SINCLAIR STAMMERS / Acellular Slime Mould, 'Many headed slime' (Physarum polycephalum) inhabits shady, cool, moist areas, such as decaying leaves and logs

David Gallan / Bushfire in a moist gully near the Clyde River, New South Wales, Australia. This wet gully is normally resistant to fire but has succumbed after months of severe drought and record-breaking temperatur...

JIM CLARE / Balls formed in and around nests of guanay cormorants (Phalacrocorax bougainvilliiorum) as they walk over moist ground and coat loose stones, or even eggs, with guano. Each of the balls usually has a...

JIM CLARE / Balls formed in and around nests of guanay cormorants (Phalacrocorax bougainvilliiorum) as they walk over moist ground and coat loose stones, or even eggs, with guano. Each of the balls usually has a...

Sebastian Kennerknecht / Semi-deciduous tropical moist rainforest mid-story, Panama Rainforest Discovery Center, Gamboa, Panama

Sebastian Kennerknecht / Semi-deciduous tropical moist rainforest mid-story, Panama Rainforest Discovery Center, Gamboa, Panama

Sebastian Kennerknecht / River flowing through semi-deciduous tropical moist rainforest, Cocobolo Nature Reserve, Mamoni Valley, Panama

Sebastian Kennerknecht / Rainfall in semi-deciduous tropical moist rainforest, Mamoni Valley, Panama

Fabrice Cahez / Parhelion or sundog phenomenon, caused by refraction of sunlight through ice crystals in either clouds of freezing moist air. France, December 2016.

Kim Taylor / Red Admiral Butterfly (Vanessa atalanta) drinking from a moist stream bed. Italy, July.

Alex Hyde / Fleischmann's glassfrog (Hyalinobatrachium fleischmanni) male attending eggs on the underside of a leaf overhanging a rainforest stream, the male will occasionally sit on the egg mass and empty his bl...

Alex Hyde / Fleischmann's glassfrog (Hyalinobatrachium fleischmanni) male attending eggs on the underside of a leaf overhanging a rainforest stream, the male will occasionally sit on the egg mass and empty his bl...