Far, far below the waves — deeper than the tallest building is tall — lies the deep sea. It is darker than night, colder than your fridge, and squeezed harder than a giant's hug.
And yet… amazing animals live there! They glow in the dark, have jelly bodies, and giant mouths. Ready to dive down and meet them?
The ocean has layers, like a tall cake. Each layer is darker and colder than the one above. Tap each layer to discover its secrets!
The deep sea begins below 200 m, where sunlight runs out.
Three big challenges make the deep sea one of the toughest homes on Earth. Tap each card to reveal the answer!
When there is no sunlight, some animals make their own light inside their bodies. This is called bioluminescence. The anglerfish dangles a glowing lure to trick tiny fish into swimming close — then gulp!
Tap the glowing dot on the anglerfish's fishing rod to switch on its light!
It's dark down here… can you find the light switch?
Deep-sea animals have soft, jelly-like, watery bodies with no air pockets to crush. That's how they survive the giant pressure. A submarine made of metal would be squashed!
Drag the slider to dive a metal submarine deeper — watch what the pressure does to it.
Each of these creatures has its own clever trick for life in the dark. Tap a card to learn its superpower!
Tap a creature, then tap its matching superpower. Get all three to win — a wrong pick just gives a hint, so keep trying!
Look how much you discovered today:
Scientists have explored more of outer space than the deep sea. What do YOU think is still hiding down there, waiting to be found?
Brilliant diving today — well done, explorer!