01 · Reef
Clownfish
Protected by a special mucus coating, clownfish live safely among the stinging tentacles of sea anemones.
Field note · Life underwater
Meet the fish.
From sunlit reefs to the quiet deep, fish have adapted to nearly every aquatic world on Earth. They navigate, communicate and survive in ways that are as varied as their colours.
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Reef wanderer
Warm, shallow waters
Three remarkable lives
Made for their world.
Every shape, colour and behaviour tells a story of adaptation.
02 · Open ocean
Yellowfin tuna
Built for speed and endurance, yellowfin cross vast distances with a streamlined body and powerful crescent tail.
03 · Deep sea
Lanternfish
Tiny light-producing organs help lanternfish communicate and camouflage themselves in the ocean’s twilight zone.
Water shapes life
One planet. Many blue worlds.
Fish live wherever water gathers—from fast mountain streams to the deepest ocean trenches.
Freshwater
Rivers and lakes demand resilience. Their currents, temperatures and oxygen levels can change quickly with the seasons.
Coral reefs
Bright, busy and densely connected, reefs shelter an extraordinary variety of fish in a small area.
The deep ocean
Below the reach of sunlight, fish rely on heightened senses, slow metabolisms and sometimes their own light.
