Imagine if you wanted to keep track of all your toys in your room - you might put a tag on each one and keep track of where they are. That's kind of like what the ocean tracking network does, but for animals in the ocean!
Scientists want to learn more about the animals living in the ocean and where they go. But since the ocean is so huge, it can be hard to keep track of them all. So the ocean tracking network puts tags on certain animals, like fish or whales, and then uses special tools to keep track of where they are and where they go.
The tags the scientists use can do all sorts of neat things, like tell them how deep in the water the animal is swimming, or how fast it's going. They can even tell the scientists what the animal's body temperature is! That information helps scientists learn more about the animals and how they live in the ocean.
So, just like how you might keep track of your toys in your room, scientists use the ocean tracking network to keep track of the animals in the ocean!