Steve Downer / Black slug (Arion ater agg.) feeding on a dead Yellow slug (Limax flavus), Birmingham, England, UK, August.

Steve Downer / Yellow slug (Limax flavus) back lit embryo moving around in egg case.

Steve Downer / Yellow slug (Limax maximus) moving across bridge over road with traffic in the background. Birmingham, UK. June.

Steve Downer / Yellow slug larva (Limax flavus) emerging from an egg case, controlled conditions.

Steve Downer / Yellow slug larva (Limax flavus) emerging from an egg case, controlled conditions.

Morley Read / Brown-banded water snake (Helicops angulatus) swallowing a Basin treefrog (Boana lanciformis) in a pool full of tadpoles in rainforest, Orellana Province, Ecuador. (non-ex)

Morley Read / Brown-banded water snake (Helicops angulatus) swallowing a Basin treefrog (Boana lanciformis) in a pool full of tadpoles in rainforest, Orellana Province, Ecuador. (non-ex)

Konrad Wothe / Leopard slug (Limax maximus) Bavaria, Germany, July.

Magnus Lundgren / Wild Wonders of China / Red-necked keelback (Rhabdophis subminiatus) venomous snake, Shek Pik, southwestern coast of Lantau Island, Hong Kong, China

Fabrice Cahez / Slug (Limax maximus) on Common evening-primrose (Oenothera biennis) flower, Vosges, France, July.

Ingo Arndt / Wildlife Photographer Ingo Arndt on location, taking pictures on leopard slug (Limax maximus) during the night and checking pictures on the camera display, Swizerland

Ingo Arndt / Carpathian blue slug (Bielzia coerulans) Slovakia