It
is huge. It covers 4,000,000 square kilometers. It
covers 42% of Brazil's land.
There are over 15,000 of species of animals that have been named in the Amazon. There are many more that still have not been discovered and named. There are over 1,800 species of butterflies. There are over 200 species of mosquitoes.
Notice that there are no mountains in the Amazon area. It is fairly flat, and has lots of little rivers running through it. They all run toward the mighty Amazon River. It is very easy to get lost. If you climb a tree to see where you are, all you see is green in all directions.