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

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

Fred Bavendam / Striped Catfish (Plotosus lineatus) form amazingly dense schools for protection from predators, Forster-Tuncurry, New South Wales, Australia

Gary Bell/ Oceanwide / Striped Catfish (Plotosus lineatus) juvenile school, Great Barrier Reef, Queensland, Australia

Naskrecki & Guyton / Marabou storks (Leptoptilos crumenifer) hunting Sharpooth catfish (Clarias gariepinus) in the dried up Mussicadzi River. In the background a bushbuck (Tragelaphus sylvaticus) drinks at another small...

Naskrecki & Guyton / Marabou storks (Leptoptilos crumenifer) hunting Sharpooth catfish (Clarias gariepinus) caught in poolsof the Mussicadzi River during the dry season. In the background a Bushbuck (Tragelaphus sylvati...

Naskrecki & Guyton / Nile monitor lizards (Varanus niloticus) converging on last remaining puddle of water in the Mussicadzi River to hunt Sharpooth catfish (Clarias gariepinus). Baboons (Papio sp.) and a busbuck (Tragela...

Naskrecki & Guyton / Nile monitor lizards (Varanus niloticus) converging on last remaining puddle of water in the Mussicadzi River to hunt Sharpooth catfish (Clarias gariepinus). Baboons (Papio sp.), a warthog (Phacochoer...

Naskrecki & Guyton / Baboons (Papio sp) watching Sharpooth catfish (Clarias gariepinus) trapped in last puddle of water, Mussicadzi River during the dry season, Gorongosa National Park, Mozambique.

Naskrecki & Guyton / Nile monitor lizards (Varanus niloticus) hunting giant Sharpooth catfish (Clarias gariepinus) in dried up puddle of the Mussicadzi River, Gorongosa National Park, Mozambique.

Naskrecki & Guyton / Saddle-billed stork (Ephippiorhynchus senegalensis) in the last remaining puddle of water in the Mussicadzi River during the dry season,with giant Sharpooth catfish (Clarias gariepinus) caught in th...

Nate Chappell/ BIA / Marabou Stork (Leptoptilos crumeniferus) feeding on large catfish, Botswana