Animals live in the rainforest because it is the oldest ecosystem on Earth. Many of the world's rainforests have been around longer than 100 million years.
Rainforests have some of the most stable climate on the planet. Temperatures range from around 75 to 80 degrees Fahrenheit, day and night, which means animals don't have to worry about finding shelter to survive in freezing temperatures. Trees provide continuous shade and rain falls daily in the rainforest, so water is always available.
Insects are the most abundant form of life in the world's rainforests. Insects, along with birds and mammals work together to find food and they all live a symbiotic lifestyle. Unfortunately, thanks to habitat loss and deforestation, close to 137 species are driven to extinction every day in the world's rainforests.