Coral bleaching

Coral reefs are like colorful cities underwater, full of amazing sea creatures. They are built by tiny animals called corals. Corals have tiny friends called algae that live inside them. These algae give corals their beautiful colors and also make food for them through sunlight, like a plant! It’s a super important friendship for the whole ocean.

Sometimes, the ocean water gets too warm, like a hot summer day that lasts too long. This makes the tiny algae friends unhappy. They get stressed and leave the coral. When the algae go away, the coral turns white because its color is gone! This is called coral bleaching. It’s like the coral is losing its colorful clothes.

When corals bleach, they get very weak and can’t get enough food. It’s like not eating for a long time. If the water stays too hot, the corals can die. This is sad because many fish and other sea animals live in the reefs and need them for homes and food. Losing the reefs means losing homes for lots of ocean friends!

Scientists are worried about coral bleaching because it’s happening more often. The main reason is that our planet is getting warmer. We can all help by using less energy, like turning off lights when we leave a room, and walking or biking instead of always using cars. This helps keep the ocean water cool for our colorful coral friends.