Lucas Bustamante / Giant river otter (Pteronura brasiliensis) eating a catfish. Yasuni National Park, Orellana, Ecuador

Luke Massey / Giant otter (Pteronura brasiliensis) feeding on a catfish (Loricariidae) with Cocoi heron (Ardea cocoi) scavenging remnants, Rio Cuiaba, Brazil

Remi Masson / Group of Black bullhead (Ameiurus melas) shoaling to protect themselves against predators, River Rhone, Rhone-Alpes, France, July.

Remi Masson / Group of Wels catfish (Silurus glanis) gathered in the River Rhone, France, August.

Neil Aldridge / Yellow-billed stork (Mycteria ibis) catching a young barbel or catfish in the shallows of the Chobe River, Chobe National Park, Botswana.

Jordi Chias / Spotted catshark (Scyliorhinus canicula) just hatched from egg case that is on Seafan (Paramuricea clavata), Ullastres seamount, Costa Brava, Llafranch, Catalunya, Spain

Anup Shah / Marabou storks (Leptoptilos crumeniferus) feeding on catfish in waterhole, wide angle view. Maasai Mara National Reserve, Kenya.

Lou Coetzer / African fish eagle (Haliaeetus vocifer) in flight with Catfish in claws, Chobe River, Botswana.

Laurent Geslin / Hamer man returns from fishing with catfish, Omo valley, Ethiopia, 2006

Norbert Wu / Striped Catfish (Plotosus lineatus) school, Bali, Indonesia

Juergen Freund / Convict blennies / False catfish, juvenile, (Pholidichthys leucotaenia) amidst a fan coral. Misool, Raja Ampat, West Papua, Indonesia,

Juergen Freund / Schooling striped catfish (Plotosus lineatus). Lembeh Strait, North Sulawesi, Indonesia.