1My aunt works as a diver and studies life in the ocean.
2She says the ocean covers about seventy percent of the planet.
3Sunlight only reaches the top two hundred metres of water.
4Most sea life lives in this bright upper layer.
5Below it lies a dim world where plants cannot grow.
6Some deep creatures produce their own light to hunt.
7Whales travel thousands of kilometres to find food and mates.
8Dolphins communicate with clicks and whistles underwater.
9Coral reefs support a quarter of all known sea species.
10A reef looks like rock, but it is built by tiny animals.
11Sea turtles return to the same beach where they were born.
12Octopuses can change colour to hide from their enemies.
13Sharks have existed for longer than trees have.
14Plastic waste now floats in every ocean on Earth.
15Sea animals often mistake plastic bags for jellyfish.
16Warming water is bleaching coral reefs around the world.
17Fishing too quickly leaves no time for populations to recover.
18Marine parks give sea life a safe place to breed.
19My aunt believes the ocean can recover if we act now.
20Her stories made me want to learn to dive one day.