🌗 The Reef: Day & Night
The same coral reef can look like two different worlds! Look at the photos side by side — one in the sunshine, and one in the middle of the night.
🔎 What's different at night?
☀️Day: breakfast time!
When the sun is up, the water sparkles blue and green. Plant-like tiny creatures called algae make food inside the coral, so the reef is bright and busy. Fish like parrotfish and clownfish nibble all day long.
🌙Night: the night shift wakes up
When the sun goes down, the water goes dark blue — almost black! Daytime fish tuck into cracks in the coral to sleep, and night hunters like octopuses, lionfish and lobsters come out to find their dinner.
🍄Coral opens up at night
Lots of corals are like sleepy flowers. In the day they look like hard rocks, but at night they stretch out soft, swaying polyps (like tiny tentacles) to catch tiny floating food from the water.
🔥Some creatures glow!
In the dark, some sea animals make their own light — it's called bioluminescence. Glow-flashlight fish, glowing jellyfish and sparkly plankton light up the night reef like tiny fairy lights.
🔎How do we see at night?
Divers need torches to see the night reef — the light beam lights up the coral and makes a glittery snowstorm of tiny plankton. Some fish have big eyes to see better in the dark. Others, like sharks, can sense tiny electric zaps from their prey!
🌊It's quieter... but not silent
The ocean is never truly quiet. At night you can hear snapping shrimp crackling like popcorn, and if you're lucky you might hear whale songs humming through the deep, dark water.
🤩 Quick game: cover the night photo, then guess who's hiding!
In our night photo there's an octopus, a lionfish and a torch beam. Can you spot all three?