By Rhett Butler
The Amazon is home to more species of plants and animals than any other terrestrial ecosystem on the planet -- perhaps 30 percent of the world's species are found there.
Pictures of Amazonian mammals:
- More than 430 species of mammal are found in the Amazon, the majority of which are bats and rodents.
- The Amazon is home to the world's largest rodent, the capybara which can weigh 200 pounds (91 kg).
- Two species of freshwater dolphin live in the Amazon river.
- Edentates -- including sloths, anteaters, and armadillos -- are common residents of the Amazon rainforest and only exist in the New World.
- In 2013, scientists announced the discovery of a previously undescribed species of tapir.