Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) group swimming close to surface during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada

Ingo Arndt / Amu-Darya Trout (Salmo trutta trutta) alevin freshly hatched with full yolk sac, Europe

Mark Bowler / Silver arowana (Osteoglossum bicirrhosum) Amazonian fish occuring in Varzea flooded forests of the amazonian rainforest. These babies with their yolk sacks have been collected for the ornamental fish...

Ingo Arndt / Brown Trout (Salmo trutta) eggs, fish already visible through egg-shell, Europe

Fred Bavendam / Golden Damselfish (Amblyglyphidodon aureus), Tonga

Fred Bavendam / Dusky Batfish (Platax pinnatus) on reef, Gili Islands, Indonesia

Fred Bavendam / Pygmy Sweeper (Parapriacanthus ransonneti) school, Komodo Island, Indonesia

Fred Bavendam / Crescent-tail Bigeye (Priacanthus hamrur) in front of a sea fan, Uepi Island, Solomon Islands

Fred Bavendam / Humpback Rockcod (Cromileptes altivelis), Uepi Island, Solomon Islands

Fred Bavendam / Banded Reef Cod (Epinephelus fasciatus), Bali, Indonesia

Fred Bavendam / White-tipped Soldierfish (Myripristis vittata) school, Nusa Penida, Indonesia

Fred Bavendam / Whale Shark (Rhincodon typus) with Golden Trevally (Gnathanodon speciosus) group swimming in front of its mouth, Exmouth, Australia