Okay kiddo, have you ever heard of a tiger before? Yes? Great! So, there used to be a type of tiger called the Caspian tiger. They were really big and powerful, just like other tigers, but they were special because they lived in a different part of the world - in Central Asia, by the Caspian Sea.
But here's the sad part. You know how we sometimes do things that make the environment change? Like how sometimes we cut down trees or build roads? Well, people did that too much where the Caspian tigers lived. They destroyed forests and hunted the animals that the tigers needed to eat. This meant that the Caspian tigers didn't have enough food or a safe place to live. They slowly started to disappear and eventually, there were no more Caspian tigers left in the wild.
Some scientists are trying to bring back the Caspian tiger by breeding other types of tigers that are similar to it. They hope that one day, the Caspian tiger will be able to live in the wild again. But until then, we should remember to take care of our planet and not do things that might hurt the animals that live in it.