A semi-desert is a place that is not quite a desert, but also not quite a place with lots of water and plants. It is like being in between. In a semi-desert, there is not enough rain to make things grow like they do in a regular forest or grassland. However, there is more rain than in a true desert, so things are not as dry and barren.
Some plants and animals are adapted to live in a semi-desert. The plants have big roots that go deep into the ground to find water, and they have thick leaves to store water too. Some animals are also very good at conserving water, like camels, who can store water in their humps.
Semi-deserts can be found all over the world in places like Australia, Africa, and even parts of the United States. They are very important ecosystems because they are home to so many specialized plants and animals. However, they are also at risk because of things like climate change and humans using up too much water. It is important to protect and preserve semi-deserts so that they can continue to support life on Earth.