MYN / Gil Wizen / Huge terrestrial flatworm (Bipalium kewense), Mindo, Ecuador, March. meetyourneighbours.net project

Magnus Lundgren / Wild Wonders of China / Free swimming marine flatworm (Tubellaria sp) Green Island, a small volcanic island in the Pacific Ocean, Taiwan

Magnus Lundgren / Wild Wonders of China / Yellow flatworm (Tubellaria sp,) Green Island, a small volcanic island in the Pacific Ocean , Taiwan

Duncan Murrell / Land Planarian - flat worm, (Bipalium sp.) on a wild banana tree, Gunung Mulu National Park, UNESCO World Heritage Site, Sarawak, Malaysian Borneo.

Emanuele Biggi / Hammerhead worms (Bipalium sp) on leaf, Sarawak. Borneo.

Franco Banfi / Flatworm (Maiazoon orsaki) on sponge, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Alex Hyde / Terrestrial flatworm (Planariidae) Danum Valley, Sabah, Borneo.

Alex Hyde / Terrestrial flatworm (Planariidae) resting in colied position. Danum Valley, Sabah, Borneo.

Alex Hyde / Terrestrial flatworm (Planariidae) Danum Valley, Sabah, Borneo.

Alex Hyde / Terrestrial flatworm (Planariidae) Danum Valley, Sabah, Borneo.

Franco Banfi / Flatworm, planarian (Rhimacephalus pulvinar), Lake Baikal, Siberia, Russia.

Alex Hyde / Land planarian (Geoplanidae) Central Caribbean foothills, Costa Rica